Psalm 17 is a prayer as its introduction states. David is upset, as we tend to get sometimes, when the wicked seem to do better than the righteous.

A Prayer of David. Hear a just cause, O LORD, Attend to my cry; Give ear to my prayer which is not from deceitful lips. Let my vindication come from Your presence; Let Your eyes look on the things that are upright. (Psalm 17.0 – 2, NKJV)

He wants deliverance from the wicked:

Show Your marvelous lovingkindness by Your right hand, O You who save those who trust in You From those who rise up against them. Keep me as the apple of Your eye; Hide me under the shadow of Your wings, From the wicked who oppress me, From my deadly enemies who surround me. They have closed up their fat hearts; With their mouths they speak proudly. (Psalm 17.7 – 10, NKJV)

Then he realizes an important truth: these are

…men who have their portion in this life… (verse 14)

So David closes with this word, which was a huge encouragement for me. It’s not about this life:

As for me, I will see Your face in righteousness; I shall be satisfied when I awake in Your likeness. (Psalm 17.15, NKJV)

I think I’ll memorize this one and meditate on it along with the Apostle John’s word:

Behold what manner of love the Father has bestowed on us, that we should be called children of God! Therefore the world does not know us, because it did not know Him. Beloved, now we are children of God; and it has not yet been revealed what we shall be, but we know that when He is revealed, we shall be like Him, for we shall see Him as He is. And everyone who has this hope in Him purifies himself, just as He is pure. (1 John 3.1 – 3, NKJV, emphasis mine)