Psalm 95:7 For he is our God, and we are the people of his pasture and the sheep of his hand.

When Jesus announced to a whole crowd of people that he himself was the Good Shepherd, I think he had this verse on his mind! The shepherd, God, is the one who seeks after the lost sheep, binds up their wounds, leads them to clear water and cool green pasture land. Jesus was calling himself our God, our shepherd.