Albert Barnes Commentary Psalms 69:6

"Let not them that wait for thee be put to shame through me, O Lord Jehovah of hosts: Let not those that seek thee be brought to dishonor through me, O God of Israel." — Psalms 69:6 (ASV)

Let not them that wait on thee - Those who worship you; those who are your true friends. True piety is often, in the Scriptures, represented as waiting on the Lord. See Psalms 25:3, Psalms 25:5; Psalms 37:9; Isaiah 40:31.

Be ashamed for my sake - On account of me; or, in consequence of what I do. Do not let me do anything that would make them ashamed of me, or ashamed to have it known that I belong to their number. I know that I am a sinner; I know that judgments come justly on me; I know that if left to myself I will fall into sin and will dishonor religion. Therefore, I pray that I may be kept from acting out the depravity of my heart and bringing dishonor on the cause that I profess to love.

No one who knows the evil of his own heart can fail to see the propriety of this prayer. Indeed, no one who remembers how often people high in the church, and zealous in their professed piety, fall into sin and disgrace their profession, can help feeling that what has happened to others may happen to him also. He recognizes that he needs special prayer and special grace, so that he may go down into the grave at last without having brought dishonor upon religion.

Let not those that seek thee - This is another phrase to denote people of true piety, as those who are seeking after God; that is, who are desirous of understanding his character and obtaining his favor.

Be confounded for my sake - Let them not feel disgraced because of me; let them not feel it a dishonor to have it said that I am one of their number, or that I profess to be united to them.