Genesis 6:13 - Joseph Benson’s Commentary on the Old and New Testaments

The end, or ruin, of all flesh is come before me Is approaching, is at the very door. It is come in my purpose and decree, and shall as certainly take place, as if it were come already, in what manner soever vain men may flatter themselves with hopes of longer impunity. I will destroy them with the earth; but make thee an ark I will take care to preserve thee alive. This ark was like the hulk of a ship, fitted not to sail upon the waters, but to float, waiting for their fall. God could have secured Noah by the ministration of angels, without putting him to any care or pains; but he chose to employ him in making that which was to be the means of his preservation, both for the trial of his faith and obedience, and to teach us that none shall be saved by Christ, but those only that work out their salvation; we cannot do it without God, and he will not without us: both the providence of God, and the grace of God, crown the endeavours of the obedient and diligent.