Psalm 3

"Though David had many enemies, the Lord was his shield. Though his ememies were putting him to shame, the Lord was his glory. And though they had publicly humiliated him, the Lord lifted his head high." - Martin Luther

I must look to the Lord as my shield, my glory, and the one who lifts my head....and trust...despite anxiety. He will subdue all fear.

That is how David was able to lay down and sleep- for the Lord was watching over him. (5)