When angry, do not sin; do not ever let your wrath (your exasperation, your fury or indignation) last until the sun goes down.
Be ye angry, and sin not: let not the sun go down upon your wrath:
“Be angry without sinning.” Don’t let the sun set on your anger.
"Be angry, but do not be willing to sin." Do not let the sun set over your anger.
Be angry, and sin not. Let not the sun go down upon your anger.