My vindication come from you

Psalm 17:1-15
deceitful lips: spoken words are different with his heart and mind.
Though you probe my heart,may your eyes see what is right: I though I am right but I like to humble myself let God make judgement. Let my vindication come from you.
David called on the Lord help him out from the enemies around him, rescue him from the wicked.
As for me, I will be vindicated and will see your face; when I awake, I will be satisfied with seeing your likeness.
Why?
Psalmist trust in the Lord, he believed that God will rescue him, his vindication will come from the Lord.
See God's face is the blessed man, even no one can see God's face alive. But here is the meaning that he can worship the Lord or pray to the Lord.
How?
God probe our heart, God knows what is right. Humble myself and obey to his word. My vindication come from you, so I won't revenge by myself.