| Barnes' Notes on the Bible In the biography of Lamek the name of his son is not only given, but the reason of it is assigned. The parents were cumbered with the toil of cultivating the ground. They looked forward with hope to the aid or relief which their son would give them in bearing the burden of life, and they express this hope in his name. In stating the reason of the name, they employ a word which is connected with it only by a second remove. נוּח nûach and נחם nācham are stems not immediately connected; but they both point back to a common root נח (n-ch) signifying "to sigh, to breathe, to rest, to lie down." This is only another recorded instance of the habit of giving names indicative of the thoughts of the parents at the time of the child's birth. All names were originally significant, and have still to this day an import. Some were given at birth, others at later periods, from some remarkable circumstance in the individual's life. Hence, many characters of ancient times were distinguished by several names conferred at different times and for different reasons. The reason of the present name is put on record simply on account of the extraordinary destiny which awaited the bearer of it. Which the Lord hath cursed. - Here is another incidental allusion to the second document, without which it would not be intelligible. If the present document had been intended to stand alone, this remark would have had its explanation in some previous part of the narrative.
Gill's Exposition of the Entire BibleAnd Lamech lived an hundred eighty and two years, and begat son. According to the Septuagint version he was an hundred and eighty eight years old; but according to the Samaritan version only fifty three; the name, of his son, begotten by him, is given in the next verse, with the reason of it.
Geneva Study BibleAnd Lamech lived an hundred eighty and two years, and begat a son:
Matthew Henry's Concise Commentary5:25-32 Methuselah signifies, 'he dies, there is a dart,' 'a sending forth,' namely, of the deluge, which came the year that Methuselah died. He lived 969 years, the longest that any man ever lived on earth; but the longest liver must die at last. Noah signifies rest; his parents gave him that name, with a prospect of his being a great blessing to his generation. Observe his father's complaint of the calamitous state of human life, by the entrance of sin, and the curse of sin. Our whole life is spent in labour, and our time filled up with continual toil. God having cursed the ground, it is as much as some can do, with the utmost care and pains, to get a hard livelihood out comfort us. It signifies not only that desire and expectation which parents generally have about their children, that they will be comforts to them and helpers, though they often prove otherwise; but it signifies also a prospect of something more. Is Christ ours? Is heaven ours? We need better comforters under our toil and sorrow, than the dearest relations and the most promising offspring; may we seek and find comforts in Christ.
Matthew Henry's Whole Bible CommentaryVerses 28-32 Here we have the first mention of Noah, of whom we shall read much in the following chapters. Observe, I. His name, with the reason of it: Noah signifies rest; his parents gave him that name, with a prospect of his being a more than ordinary blessing to his generation: This same shall comfort us concerning our work and toil of our hands, because of the ground which the Lord hath cursed. Here is, 1. Lamech's complaint of the calamitous state of human life. By the entrance of sin, and the entail of the curse for sin, our condition has become very miserable: our whole life is spent in labour, and our time filled up with continual toil. God having cursed the ground, it is as much as some can do, with the utmost care and pains, to fetch a hard livelihood out of it. He speaks as one fatigued with the business of this life, and grudging that so many thoughts and precious minutes, which otherwise might have been much better employed, are unavoidably spent for the support of the body. 2. His comfortable hopes of some relief by the birth of this son: This same shall comfort us, which denotes not only the desire and expectation which parents generally have concerning their children (that, when they grow up, they will be comforts to them and helpers in their business, though they often prove otherwise), but an apprehension and prospect of something more. Very probably there were some prophecies that went before of him, as a person that should be wonderfully serviceable to his generation, which they so understood as to conclude that he was the promised seed, the Messiah that should come; and then it intimates that a covenant-interest in Christ as ours, and the believing expectation of his coming, furnish us with the best and surest comforts, both in reference to the wrath and curse of God which we have deserved and to the toils and troubles of this present time of which we are often complaining. "Is Christ ours? Is heaven ours? This same shall comfort us." II. His children, Shem, Ham, and Japheth. These Noah begat (the eldest of these) when he was 500 years old. It should seem that Japheth was the eldest (ch. 10:21), but Shem is put first because on him the covenant was entailed, as appears by ch. 9:26, where God is called the Lord God of Shem. To him, it is probable, the birth-right was given, and from him, it is certain, both Christ the head, and the church the body, were to descend. Therefore he is called Shem, which signifies a name, because in his posterity the name of God should always remain, till he should come out of his loins whose name is above every name; so that in putting Shem first Christ was, in effect, put first, who in all things must have the pre-eminence. | 
