Albert Barnes Commentary Leviticus 19:17

"Thou shalt not hate thy brother in thy heart: thou shalt surely rebuke thy neighbor, and not bear sin because of him." — Leviticus 19:17 (ASV)

Not suffer sin upon him - Rather, not incur guilt for sin on his account; that is, either by bearing secret ill-will (Ephesians 4:26), or by encouraging him to sin in withholding due rebuke (Romans 1:32).