Here is a definition of a peacemaker that I wrote as a guest post for Desiring God’s blog:
Our master, Jesus the Messiah, said, “Blessed are the peacemakers, for they shall be called sons of God.” Christians are called to be peacemakers. So how are we doing? Is this what we are known for? Does this describe you?
Imagine you were to tell your family that you wanted to be a peacemaker. Would they first think of the church or the UN? “Peacemaker” ought to be synonymous with Christian, especially in light of the frequent New Testament commands to be at peace with others (i. e. Romans 12:18; 14:19; 2 Corinthians 13:11). Do we realize that not only does Paul give a blessing of grace at the beginning of each of his letters, but he also always includes peace?
But what is a peacemaker? Here is an intentionally peace-filled definition that I hope helps reawaken us to the prominence of peace in the Bible:
A peacemaker is someone who experiences the peace of God (Philippians 4:7) because he is at peace (Romans 5:1) with the God of peace (Philippians 4:9) through the Prince of peace (Isaiah 9:6), who, indeed, is our peace (Ephesians 2:14), and who therefore seeks to live at peace with all others (Romans 12:18) and proclaims the gospel of peace (Ephesians 6:15) so that others might have joy and peace in believing (Romans 15:13).