Judge me, O Lord; for I have walked in mine integrity. It seems to Christians a bold act to call on God for judgment, but the saints of the earlier dispensation, having, perhaps, a less keen sense of human imperfection, were wont to do so.
It is Job's cry from his first utterance until his "words are ended;" and here we find David taking it up and re-echoing it. Man longs to hear the sentence of acquittal from the great Judge. Like Job, David asserts his "integrity," and in the same qualified sense.
He is sincere in his endeavours to do right. Yet still he needs mercy and redemption (see verse 11). I have trusted also in the Lord; therefore I shall not slide. (comp. Psalms 18:36; Psalms 37:31). David is confident of his past; for the future he trusts in God to uphold his steps, and save him from slips and falls.