The third psalm is a psalm of David when he was fleeing from Absalom. Going over the Mount of Olives and out towards the Judean wilderness on news that Absalom was coming with an army from Hebron. And David pours out his heart to the Lord.
LORD, how are they increased that trouble me! many are they that rise up against me ( Psa_3:1 ).
Absalom had been able to gather much of Judah against David.
Many there be which say of my soul, There is no help for him in God ( Psa_3:2 ).
God won't help him now.
But thou, O LORD, art a shield for me; my glory, and the lifter up of mine head ( Psa_3:3 ).
O God, there a lot of people that have risen against me. A lot of people going around saying, "God won't help him now." But O God, You are my shield. You are the one who lifts up my head. You're my glory.
I cried unto the LORD with my voice, and he heard me out of his holy hill ( Psa_3:4 ).
Now, know all of the tension that is there. He is running. He doesn't know what the future holds; this could be it. But he said,
I laid me down and slept; I awaked; for the LORD sustained me ( Psa_3:5 ).
He was able to sleep under these conditions.
I will not be afraid of ten thousands of people, that have set themselves against me round about. Arise, O LORD; save me, O my God: for thou hast smitten all mine enemies upon the cheek bone; thou hast broken the teeth of the ungodly. Salvation belongs unto the LORD: thy blessing is upon thy people ( Psa_3:6-8 ).
So the psalm begins with a cry of despair from all of the trouble. Those which had risen up against him, those who had said there was no hope. But he turns to God in this condition, and he is assured of God's strength and help. And the psalm ends, really, with a glorious note of victory, "Salvation belongs to the Lord. Thy blessing is upon Thy people." "