Matthew 26:52
Then Jesus said to him, "Put your sword back where it belongs! For all who draw the sword will die by the sword.
Revelation 13:10
Whoever is destined for captivity will go into captivity; whoever kills with the sword must be killed with the sword. On this fact rests the endurance and fidelity of God's people.
James 3:9
With it we bless the Lord our Father, and with it we curse men made in God's likeness.
Romans 13:4
for they are God's agents to do you good. But if you do wrong you may well be afraid, for they do not carry swords for nothing. They are God's servants, to execute his wrath upon wrongdoers.