Ephesians 4:26-27

26Be angry [at sin—at immorality, at injustice, at ungodly behavior], yet do not sin; do not let your anger [cause you shame, nor allow it to] last until the sun goes down.

27And do not give the devil an opportunity [to lead you into sin by holding a grudge, or nurturing anger, or harboring resentment, or cultivating bitterness].