The phrase "violence begets violence" (or "hate begets hate") means that violent behaviour promotes other violent behaviour, in return. The phrase has been used since the early 19th century.[1][2]
Violence begets violence is a concept described in the Gospel of Matthew, verse 26:52.[3][4][5] The passage depicts a disciple (identified in the Gospel of John as Peter) drawing a sword to defend against the arrest of Jesus but being told to sheath his weapon:
"Put your sword back in its place," Jesus said to him, "for all who draw the sword will die by the sword."[6]