John Calvin Commentary John 10:9

"I am the door; by me if any man enter in, he shall be saved, and shall go in and go out, and shall find pasture." — John 10:9 (ASV)

If any man enter by me. The highest consolation of believers is that when they have once embraced Christ, they learn that they are out of danger, for Christ promises them salvation and happiness. He afterwards divides it into two parts.

He shall go in and out, and find pasture. First, they shall go safely wherever they find necessary; and, next, they shall be fed to the full. By going in and out, Scripture often denotes all the actions of the life, as we say in French, aller et venir, (to go and come), which means, to dwell. These words, therefore, present to us a twofold advantage of the Gospel: that our souls shall find pasture in it, which otherwise become faint and famished and are fed with nothing but wind; and, next, because he will faithfully protect and guard us against the attacks of wolves and robbers.