I am the door. If anyone enters by me, he will be saved and will go in and out and find pasture.John 10:9
"The second blessing for the flock is to come in and gout out and find pasture, an image of security and nurture. The sheep are under the shepherd's care and grow through nourishment by the food he provides. We note that the security is provided by the proximity to the shepherd, not by the walls of the enclosure."
Bruce Milne, John (Bible Speaks Today)