On that very day Noah entered the ark, along with his sons Shem, Ham, and Japheth, and his wife, and the three wives of his sons—
13. In the self-same day entered Noah , and Shem , etc . A repetition follows, sufficiently particular, considering the brevity with which Moses runs through the history of the deluge, yet by no means superfluous. For it was the design of the Spirit to retain our minds in the consideration of a vengeance too terrible to be adequately described by the utmost severity of language.
Here is repeated what was related before of Noah's entrance into the ark, with his family and creatures that were marked for preservation. Now, I. It is thus repeated for the honour of Noah, whose faith and obedience herein shone so brightly, by which he obtained a good report, and who herein appeared so great a favourite of Heaven and so great a blessing to this earth. II.
Commenting on Genesis 7:13-16
And they went in unto Noah into the ark,.... Noah went in first, and the creatures of themselves came to him, or were conducted by the ministry of angels; and they were delivered into his hands, and he placed them in the ark as was most convenient for them: it is very likely he went in and out as occasion required, for the better management...