After seeing Christ as Savior (22), we see Him as Shepherd (23). The Shepherd boy, David, sees the LORD as his shepherd. It is very personal to him. And it is true for everyone who belongs to Him today. The Lord is MY Shepherd. He loves and cares for me. He provides for all my needs and brings me safely through all of life's mountains and valleys.
If Psalm 22 is what He did for me, this Psalm is what He is doing for me.
In Psalm 22, He used a cross. In this Psalm, He uses the crook of the shepherd's staff.