Let a righteous man strike me – that is a kindness; let him rebuke me – that is oil on my head. My head will not refuse it, for my prayer will still be against the deeds of evildoers.
NIV
Let the righteous man smite and correct me--it is a kindness. Oil so choice let not my head refuse or discourage; for even in their evils or calamities shall my prayer continue. [Prov. 9:8; 19:25; 25:12; Gal. 6:1.]AMP
Let the righteous smite me; it shall be a kindness: and let him reprove me; it shall be an excellent oil, which shall not break my head: for yet my prayer also shall be in their calamities.
KJV