Charles H. Spurgeon on Psalms 119:39

Turn away my reproach. In the Hebrew it is, "Take away my rebuke"; as if he should have said, O Lord, I may commit some such evil against thy good law, yea, some such notorious transgression, as may tend to my shame; I beseech thee, take it away. Or else he meaneth, I have already, O Lord, by divers sins, and by name through adultery and murder brought shame and rebuke upon myself among men; I entreat thee to remove this shame and rebuke.

Out of the first exposition we learn, First, that the godly are subject unto notorious sins. Secondly, that those sins will cause shame in them, though the wicked will not be ashamed. Thirdly, that God only can take away this shame. Fourthly, that we may pray for the removing of shame even amongst men, especially that which may bring with it some dishonour to God. Fifthly, that the godly are most jealous over themselves. Sixthly, the way to avoid sin is ever to be afraid lest we should sin.

Out of the second exposition note, that the remembrance of our former sins must draw out of us prayers unto God, that for them we may not be rebuked in displeasure in this life, nor confounded and abashed in the life to come. Richard Greenham.