Genesis 7:9

There went in two and two unto Noah into the ark, the male and the female, as God had commanded Noah.

Ver. 9. There went in two and two.] Of their own accord, by divine instinct. Noah was not put to the pains of hunting after them, or driving them in. Only he seems to have been six days in receiving and disposing of them in their various cells, and fetching in food. When God bids us do this or that, never stand to cast perils; but set upon the work, yield "the obedience of faith," and fear nothing. The creatures came in to Noah, without his care or cost. He had no more to do, but to take them in, and place them. The prophet alludes hereto in Isaiah 11:6,7, - all bloodiness and rapine aside.