Genesis 5:24

He was not Any longer on earth or among men; for God took him Out of this sinful and miserable world to himself. He was translated, as it is explained, Hebrews 11:5, that he should not see death, and was not found by his friends who sought him, as the sons of the prophets sought Elijah, 2 Kings 2:17, because God had translated him, had taken him body and soul to himself, as he afterward took that prophet. He was changed, as those saints shall be that are found alive at Christ's second coming. But why did God take him so soon? Surely because the world, which was now grown corrupt, was unworthy of him, and because his work was done, and done the sooner, by his attending to it, and prosecuting it so diligently. But it is probable, also, that by his translation, as well as by that of Elijah, God intended to give mankind, generally become infidels with regard to a future state, a demonstration of the reality of such a state, and of the felicity of it, with respect to the righteous. For if there were no witness of his translation, as there was of that of Elijah, the circumstance that his body was not found, added to his eminent piety, might convince, at least such as were considerate, that he was taken to a better world.

Genesis 5:25. Methuselah signifies, He dies, there is a sending forth, namely, of the deluge, which came the very year that Methuselah died. If his name was so intended, it was a fair warning to a careless world long before the judgment came. However, this is observable, that the longest liver that ever was, carried death in his name, that he might keep in mind its coming surely, though it came slowly. He lived nine hundred sixty and nine years The longest that ever any man lived on earth, and yet he died The longest liver must die at last. Neither youth nor age will discharge from that war, for that is the end of all men: none can challenge life by long prescription, nor make that a plea against the arrests of death. It is commonly supposed, that Methuselah died a little before the flood; the Jewish writers say, seven days before, referring to Genesis 7:10, and that he was taken away from the evil to come.