Psalms 69:5

“This may be regarded as an appeal, vindicating his innocence, as if he had said, "If sinful, thou knowest," &c. Though David's condition as a sufferer may typify Christ's, without requiring that a parallel be found in character.”

“O God, thou knowest my foolishness - The errors and follies of my life. Though conscious of innocence in this case - though he felt that his enemies hated him “without cause,” and that they took what belonged to him and not to them, yet he was not insensible to the fact that he was a sinner, and he was not unwilling to confess before God, that, however conscious of uprightness he might be in his dealings toward people, yet toward God, he was a sinful man. From him he deserved all that had come upon him. Indeed the very calamities which had been permitted to come upon him were proof to his own mind that he was a sinner, and served, as they were doubtless designed, to turn his mind to that…”

“My sins - But O Lord, although I have been innocent to mine enemies, I am guilty of many sins and follies against thee. Psalms 69:6”

“69:5-6 The psalmist confesses his sins and prays that God’s response to him will encourage others in similar conditions to place their hope in the Lord.”

“and my sins: Heb. and my guiltiness, Psa 17:3, Psa 19:12, Psa 44:20, Psa 44:21 hid: Psa 38:9; Jer 16:17 Psalms 69:6”