Psalm 19:2
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Day unto day uttereth speech, and night unto night sheweth knowledge.

Psalm 19 Commentaries: BarnesCalvinClarkeDarbyGillGenevaGuzikJFBKeil / DelitzschKJV Translators'Henry's ConciseMatthew HenryScofieldTSKTreasury of DavidWesley
Barnes' Notes on the Bible

Day unto day - One day to another; or, each successive day. The day that is passing away proclaims the lesson which it had to convey from the movements of the heavens, about God; and thus the knowledge of God is accumulating as the time moves on. Each day has its own lesson in regard to the wisdom, the power, and the goodness of God, and that lesson is conveyed from one day to another. There is a perpetual testimony thus given to the wisdom and power of the Great Creator.

Uttereth speech - The word here rendered uttereth means properly to pour forth; to pour forth copiously as a fountain. Compare Proverbs 18:4; Proverbs 1:23; Proverbs 15:2, Proverbs 15:28. Hence, the word means to utter; to declare. The word "speech" means properly "a word;" and then, "a lesson;" or "that which speech conveys." The idea is, that the successive days thus impart instruction, or convey lessons about God. The day does this by the returning light, and by the steady and sublime movement of the sun in the heavens, and by all the disclosures which are made by the light of the sun in his journeyings.

And night unto night showeth knowledge - Knowledge respecting God. Each successive night does this. It is done by the stars in their courses; in their order; their numbers; their ranks; their changes of position; their rising and their setting. There are as many lessons conveyed to man about the greatness and majesty of God by the silent movements of each night as there are by the light of the successive days - just as there may be as many lessons conveyed to the soul about God in the dark night of affliction and adversity, as there are when the sun of prosperity shines upon us.


Clarke's Commentary on the Bible

Day unto day uttereth speech - Each day is represented as teaching another relative to some new excellence discovered in these manifold works of God. The nights also, by the same figure, are represented as giving information to each other of the increase of knowledge already gained.

"The labors of these our instructers know no intermission; but they continue incessantly to lecture us in the science of Divine wisdom. There is one glory of the sun, which shines forth by day; and there are other glories of the moon and of the stars, which become visible by night. And because day and night interchangeably divide the world between them, they are therefore represented as transmitting, in succession, each to other, the task enjoined them, like the two parts of a choir, chanting forth alternately the praises ot God." - Bisbop Horne.


Gill's Exposition of the Entire Bible

Day untoday uttereth speech,.... This, with the following clause,

and night untonight showeth knowledge, some understand of the constant and continued succession of day and night; which declares the glory of God, and shows him to be possessed of infinite knowledge and wisdom; and which brings a new accession of knowledge to men; others, of the continual declaration of the glory of God, and of the knowledge of him made by the heavens and the firmament, the ordinances of which always continue; the sun for a light by day, and the moon and stars for a light by night; and so night and day constantly and successively proclaim the glory and wisdom of God: but rather this is to be understood of the constancy of the Gospel ministry, and the continuance of the evangelic revelation. The apostles of Christ persevered in their work, and laboured in the word and doctrine night and day: they were in it at all seasons; yea, were instant in season and out of season; and though they are dead, the Gospel continues, and will do as long as day and night remain: and these, like overflowing fountains, sent forth in great abundance, as the word (x) rendered "uttereth" signifies, the streams of divine light and knowledge; they were full of matter, and their tongues were as the pen of a ready writer; they diffused the savour of the knowledge of Christ, in great plenty, in every place where they came. These words express the continuance of the Gospel revelation, as the next do the extent of it.

(x) "eructat", Musculus, Munster, Vatablus, Junius & Tremellius, Piscator; so Ainsworth; "scaturit", Muis; "scaturiendo effundit", Cocceius; "copiose ac constanter instar foecundae cujusdam scaturiginis protrudit, emittit", Gejerus; so Michaelis.


Geneva Study Bible

{b} Day unto day uttereth speech, and night unto night sheweth knowledge.

(b) The continual success of the day and night is sufficient to declare God's power and goodness.


Wesley's Notes

19:2 Day - Every day and night repeats these demonstrations of God's glory. Uttereth - Or, poureth forth, constantly and abundantly, as a fountain doth water; So this Hebrew word signifies. Knowledge - Gives us a clear knowledge or discovery of God their author.


Jamieson-Fausset-Brown Bible Commentary

2. uttereth-pours forth as a stream; a perpetual testimony.


Matthew Henry's Concise Commentary

19:1-6 The heavens so declare the glory of God, and proclaim his wisdom, power, and goodness, that all ungodly men are left without excuse. They speak themselves to be works of God's hands; for they must have a Creator who is eternal, infinitely wise, powerful, and good. The counter-changing of day and night is a great proof of the power of God, and calls us to observe, that, as in the kingdom of nature, so in that of providence, he forms the light, and creates the darkness, Isa 45:7, and sets the one against the other. The sun in the firmament is an emblem of the Sun of righteousness, the Bridegroom of the church, and the Light of the world, diffusing Divine light and salvation by his gospel to the nations of the earth. He delights to bless his church, which he has espoused to himself; and his course will be unwearied as that of the sun, till the whole earth is filled with his light and salvation. Let us pray for the time when he shall enlighten, cheer, and make fruitful every nation on earth, with the blessed salvation. They have no speech or language, so some read it, and yet their voice is heard. All people may hear these preachers speak in their own tongue the wonderful works of God. Let us give God the glory of all the comfort and benefit we have by the lights of heaven, still looking above and beyond them to the Sun of righteousness.


Matthew Henry's Whole Bible Commentary

PSALM 19

There are two excellent books which the great God has published for the instruction and edification of the children of men; this psalm treats of them both, and recommends them both to our diligent study. I. The book of the creatures, in which we may easily read the power and godhead of the Creator (v. 1-6). II. The book of the scriptures, which makes known to us the will of God concerning our duty. He shows the excellency and usefulness of that book (v. 7-11) and then teaches us how to improve it (v. 12-14).

To the chief musician. A psalm of David.

Verses 1-6

From the things that are seen every day by all the world the psalmist, in these verses, leads us to the consideration of the invisible things of God, whose being appears incontestably evident and whose glory shines transcendently bright in the visible heavens, the structure and beauty of them, and the order and influence of the heavenly bodies. This instance of the divine power serves not only to show the folly of atheists, who see there is a heaven and yet say, "There is no God," who see the effect and yet say, "There is no cause," but to show the folly of idolaters also, and the vanity of their imagination, who, though the heavens declare the glory of God, yet gave that glory to the lights of heaven which those very lights directed them to give to God only, the Father of lights. Now observe here,

1. What that is which the creatures notify to us. They are in many ways useful and serviceable to us, but in nothing so much as in this, that they declare the glory of God, by showing his handy-works, v. 1. They plainly speak themselves to be God's handy-works; for they could not exist from eternity; all succession and motion must have had a beginning; they could not make themselves, that is a contradiction; they could not be produced by a casual hit of atoms, that is an absurdity, fit rather to be bantered than reasoned with: therefore they must have a Creator, who can be no other than an eternal mind, infinitely wise, powerful, and good. Thus it appears they are God's works, the works of his fingers (Ps. 8:3), and therefore they declare his glory. From the excellency of the work we may easily infer the infinite perfection of its great author. From the brightness of the heavens we may collect that the Creator is light; their vastness of extent bespeaks his immensity;, their height his transcendency and sovereignty, their influence upon this earth his dominion, and providence, and universal beneficence: and all declare his almighty power, by which they were at first made, and continue to this day according to the ordinances that were then settled.

II. What are some of those things which notify this? 1. The heavens and the firmament-the vast expanse of air and ether, and the spheres of the planets and fixed stars. Man has this advantage above the beasts, in the structure of his body, that whereas they are made to look downwards, as their spirits must go, he is made erect, to look upwards, because upwards his spirit must shortly go and his thoughts should now rise. 2. The constant and regular succession of day and night (v. 2): Day unto day, and night unto night, speak the glory of that God who first divided between the light and the darkness, and has, from the beginning to this day, preserved that established order without variation, according to God's covenant with Noah (Gen. 8:22), that, while the earth remains, day and night shall not cease, to which covenant of providence the covenant of grace is compared for its stability, Jer. 33:20; 31:35. The counterchanging of day and night, in so exact a method, is a great instance of the power of God, and calls us to observe that, as in the kingdom of nature, so in that of providence, he forms the light and creates the darkness (Isa. 45:7), and sets the one over-against the other. It is likewise an instance of his goodness to man; for he makes the out-goings of the morning and evening to rejoice, Ps. 65:8. He not only glorifies himself, but gratifies us, by this constant revolution; for as the light of the morning befriends the business of the day, so the shadows of the evening befriend the repose of the night; every day and every night speak the goodness of God, and, when they have finished their testimony, leave it to the next day, to the next night, to stay the same. 3. The light and influence of the sun do, in a special manner, declare the glory of God; for of all the heavenly bodies that is the most conspicuous in itself and most useful to this lower world, which would be all dungeon, and all desert, without it. It is not an improbable conjecture that David penned this psalm when he had the rising sun in view, and from the brightness of it took occasion to declare the glory of God. Concerning the sun observe here, (1.) The place appointed him. In the heavens God has set a tabernacle for the sun. The heavenly bodies are called hosts of heaven, and therefore are fitly said to dwell in tents, as soldiers in their encampments. The sun is said to have a tabernacle set him, no only because he is in continual motion and never has a fixed residence, but because the mansion he has will, at the end of time, be taken down like a tent, when the heavens shall be rolled together like a scroll and the sun shall be turned to darkness. (2.) The course assigned him. That glorious creature was not made to be idle, but his going forth (at least as it appears to our eye) is from one point of the heavens, and his circuit thence to the opposite point, and thence (to complete his diurnal revolution) to the same point again; and this with such steadiness and constancy that we can certainly foretel the hour and the minute at which the sun will rise at such a place, any day to come. (3.) The brightness wherein he appears. He is as a bridegroom coming out of his chamber, richly dressed and adorned, as fine as hands can make him, looking pleasantly himself and making all about him pleasant; for the friend of the bridegroom rejoices greatly to hear the bridegroom's voice, Jn. 3:29. (4.) The cheerfulness wherewith he makes this tour. Though it seems a vast round which he has to walk, and he has not a moment's rest, yet in obedience to the law of this creation, and for the service of man, he not only does it, but does it with a great deal of pleasure and rejoices as a strong man to run a race. With such satisfaction did Christ, the Sun of righteousness, finish the work that was given him to do. (5.) His universal influence on this earth: There is nothing hidden from the heart thereof, no, not metals in the bowels of the earth, which the sun has an influence upon.

III. To whom this declaration is made of the glory of God. It is made to all parts of the world (v. 3, 4): There is no speech nor language (no nation, for the nations were divided after their tongues, Gen. 10:31, 32) where their voice is not heard. Their line has gone through all the earth (the equinoctial line, suppose) and with it their words to the end of the world, proclaiming the eternal power of God of nature, v. 4. The apostle uses this as a reason why the Jews should not be angry with him and others for preaching the gospel to the Gentiles, because God had already made himself known to the Gentile world by the works of creation, and left not himself without witness among them (Rom. 10:18), so that they were without excuse if they were idolaters, Rom. 1:20, 21. And those were without blame, who, by preaching the gospel to them, endeavoured to turn them from their idolatry. If God used these means to prevent their apostasy, and they proved ineffectual, the apostles did well to use other means to recover them from it. They have no speech or language (so some read it) and yet their voice is heard. All people may hear these natural immortal preachers speak to them in their own tongue the wonderful works of God.

In singing these verses we must give God the glory of all the comfort and benefit we have by the lights of the heaven, still looking above and beyond them to the Sun of righteousness.