Noah Webster's Dictionary (n.) One who makes peace by reconciling parties that are at variance. Int. Standard Bible Encyclopedia PEACEMAKER pes'-mak-er: Occurs only in the plural (Matthew 5:9, "Blessed are the peacemakers (eirenopoioi): for they shall be called sons of God" (who is "the God of peace")). We have also what seems to be a reflection of this saying in James 3:18, "The fruit of righteousness is sown in peace for (the Revised Version margin "by") them that make peace" (tois poiousin eirenen). In classical Greek a "peacemaker" was an ambassador sent to treat of peace. The word in Matthew 5:9 would, perhaps, be better rendered "peace-workers," implying not merely making peace between those who are at variance, but working peace as that which is the will of the God of peace for men. W. L. Walker

Multi-Version Concordance Peacemaker (1 Occurrence) 1 Timothy 2:5 For there is one God and one peacemaker between God and men, the man Christ Jesus, (BBE)