Psa 23:1  A Psalm of David. The LORD is my shepherd; I shall not want. 

That always confused me when I was younger. Does that mean that we shouldn't want God as  our shepherd? No. It is simply saying that God as our shepherd is all we could ever want. All we could ever need. What David is saying, is that God watches over us, that is all I want. I do not want anything else.

Psa 23:2  He maketh me to lie down in green pastures: he leadeth me beside the still waters. 

He maketh me to lie down in green pastures..... That means that God is leading us to the best places on earth. Notice that it didn't say that He maketh me to lie down in gray pastures, or he maketh me to lie down in dead pastures. He doesn't lead us to the worst land. He doesn't bring us to the roughest and choppiest rivers ever.

Psa 23:3  He restoreth my soul: he leadeth me in the pat ... Read more »