shall go in and out, and find pasture.
Psalms 23:2 He maketh me to lie down in green pastures: he leadeth
me beside the still waters.
Both passages are parables where we play the part of sheep in God's fold. But, in John, we see that Jesus is the only entrance into God's fold. The newer verse shows the fulfillment of the older verse. This lends so many figures of speech and metaphoric comparisons of our relationship with Jesus. If Jesus is our Shepherd, then we can turn to Him for all our needs. The Shepherd provides food and shelter from storms, as well as security from predators. All the sheep need do is eat and follow. This makes a beautiful picture of peace for the Christian, as part of the flock.