Who can vnderstand his errours? cleanse thou me from secret faults.
- King James Version (1611) - View 1611 Bible Scan

Who can discern {his} errors? Acquit me of hidden {faults.}
- New American Standard Version (1995)

Who can discern `his' errors? Clear thou me from hidden `faults'.
- American Standard Version (1901)

Who has full knowledge of his errors? make me clean from secret evil.
- Basic English Bible

Who understandeth [his] errors? Purify me from secret [faults].
- Darby Bible

Who can understand his errors? cleanse thou me from secret faults.
- Webster's Bible

Who can discern his errors? Forgive me from hidden errors.
- World English Bible

Errors! who doth understand? From hidden ones declare me innocent,
- Youngs Literal Bible

(19:13) Who can discern his errors? Clear Thou me from hidden faults.
- Jewish Publication Society Bible

Wesley's Notes for Psalms 19:12

19:12 Who - Thy law, O Lord, is holy and just and good. But I fall infinitely short of it. Cleanse - Both by justification, through the blood of thy son; and by sanctification thro' thy holy spirit. Though the first may seem to be principally intended, because he speaks of his past sins. Secret - From the guilt of such sins as were secret either, from others; such as none knows but God and my own conscience: or, from myself; such as I never observed, or did not discern the evil of. Pardon my unknown sins, of which I never repented particularly, as I should have done.