창세기 5:29의 주석

זה ינחמנו THIS WILL COMFORT US — He will ease from off us (ינחמנו) the toil of our hands. For until Noah came people had no agricultural instruments and he prepared such for them. The earth had brought forth thorns and thistles when they sowed wheat in consequence of the curse imposed upon Adam Harishon: in the days of Noah, however, this ceased (Tanchuma 1:1:11). This is what is meant by the word ינחמנו (viz., ינח מנו). If, however, you do not explain it in this manner, but from the root נחם “to comfort”, then the meaning you give to this expression (connecting it with the idea of “comfort”) will have no application to the name נח, and you would have to call him מנחם “Comforter”.

זה ינחמנו, if you were to question why our sages do not describe Lemech as a great prophet, as they described Ever who had called his son Peleg, foreseeing that in his time mankind would be divided into 70 languages, etc., (Seder Olam 1) the reason is that Noach was the first man born after the death of Adam, and by calling him Noach he merely expressed the hope and prayer that Noach would be able to atone for the iniquity which Adam had perpetrated. The word נח is an allusion to הנחה, a relief, reduction in cost, i.e. the curse that mankind suffers under, especially the earth, should be lifted now that Adam had been replaced by an innocent human being who did not share time on earth with Adam who had brought a curse upon mankind. In the case of Peleg, it is impossible to see in that name the expression of a prayer, a plea; hence we must interpret it as a sign of his father’s prophetic vision.

זה ינחמנו, Lemech prayed that this son would provide him with the ability to take a rest from his heavy labour. The root of the word נח is מנוחה, rest, (retirement). The word is also used in connection with giving one a respite from one’s enemies, as in Esther 9,16.