Jesus did not say, blessed are the pacifists, but rather, "Blessed are the peacemakers" meaning those who make peace. This is the first occurrence of peace in the New Testament, and this verse has special significance since Jesus is the only real Peacemaker. It was He who "made peace through the blood of his cross" (Colossians 1:20). Before there can be peace between man and man, there must be peace between man and God. Since His blood has reconciled God to man, "we have peace with God through our Lord Jesus Christ" (Romans 5:1). His disciples, therefore, can best be peacemakers themselves by urging men to "be ye reconciled to God" (2 Corinthians 5:20).

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8