My shield, my glory and the lifter of my head

Psalm 3:1-8
But you, O Lord, are a shield about me, my glory, and the lifter of my head.
I will not be afraid of many thousands of people who have set themselves against me all around.
For God strike all my enemies on the check; you break the teeth of the wicked.
Salvation belongs to the Lord; your blessing be on your people!
It was written by David when he at the time of his son Absalom's rebellion.
1-2 outline the situation, 3-6: in God, the God who answers, is security and freedom from fear. 7-8: the psalmist calls on God to save him.
Why?
No matter what the situation is, but the Lord is shield about me,  he is my savior. This is the faith to the Lord.
Salvation belongs to the Lord: God who will save the people he likes. Those who love the Lord, God loves him either. God loves his people.
Lifter of my head: I won't shame among people, God is my glory when I trust in Him.
I can calls God to help me when I needed! This is a privilege and blessing for a Christian.
How?
O Lord, he is my glory, my field and my savior! Praise be to the Lord!