Psalm 17 Jan. 7 A Prayer by David.  1Hear, Yahweh, my righteous plea; give ear to my prayer, that doesn’t go out of deceitful lips. 2Let my sentence come forth from Your presence, let Your eyes look on integrity. 3You have proved my heart. You have visited me in the night. You have tried me, and found nothing. I have resolved that my mouth shall not disobey. 4As for the works of men, by the word of Your lips I have kept myself from the ways of the violent. 5My steps have held fast to Your paths, my feet have not slipped. 6I have called on You, for You will answer me, God. Turn Your ear to me, hear my words. 7Show Your marvellous grace, You who save those who take refuge under Your right hand from their enemies. 8Keep me as the apple of Your eye, hide me under the shadow of Your wings, 9from the wicked who oppress me, my deadly enemies, who surround me. 10They close up their callous hearts. With their mouth they speak proudly. 11They have now surrounded us in our steps, they set their eyes to cast us down to the earth. 12He is like a lion that is greedy of his prey, as it were a young lion lurking in secret places. 13Arise, Yahweh, confront him. Cast him down. Deliver my soul from the wicked by Your sword; 14from men by Your hand, Yahweh, from men of the world, whose portion is in this life. You fill the belly of Your cherished ones. Your sons have plenty, and they store up wealth for their children. 15As for me, I shall see Your face in righteousness. I shall be satisfied, when I awake, with seeing Your form.   

Commentary

17:2 We are invited to see our coming before God’s throne in prayer as a foretaste of the judgment day, when we shall in reality come before His throne. The positive answer to our prayers now- the sentence going forth from the court of Heaven in response to God having as it were judged them- is therefore an encouragement of our final acceptance in that day.
17:4 The word of Your lips I have kept myself- Constant reflection upon God’s word is the way to victory against temptation, as Jesus showed by continually quoting from Scripture during His wilderness temptations (Ps. 119:11). 
17:8 The apple of Your eye- God is simply so sensitive to us.
Hide me under the shadow of Your wings- Alluding to the wings of the cherubim covering the ark, where the blood of atonement (representing Christ’s blood) was sprinkled. David saw himself as living in the most holy presence of God wherever he was.
17:15 Seeing Your form- Another indication God exists in a literal tangible form, and we shall see Him.