“Moreover, keep me from committing flagrant sins; do not allow such sins to control me. Then I will be blameless, and innocent of blatant rebellion.”
The psalmist wants to please God, v. 14. He knows that keeping the Word will guide him to do that, vv. 7-11. He will commit errors, v. 12, but he prays he will never be consciously rebellious.
Where do we cross the line from inadvertent error to blatant sin? Premeditation may well define it, Rm 13.14.