Is it okay for a man to kill or take from another? Does God permit or desire for us to fight?

Jesus commanded Peter, "Put your sword away! 36 Jesus said, "My kingdom is not of this world. If it were, my servants would fight to prevent my arrest. John 18:11,36

For though we live in the world, we do not wage war as the world does. 2 Corinthians 10:3

Thou shalt not kill. Exodus 20:13

Ye have heard that it was said by them of old time, Thou shalt not kill ; and whosoever shall kill shall be in danger of the judgment. Matthew 5:21

Let the peace of Christ rule in your hearts, since as members of one body you were called to peace. And be thankful. Colossians 3:15

Blessed are the peacemakers, for they will be called sons of God. Matthew 5:9

What causes fights and quarrels among you? Don't they come from your desires that battle within you? You want something but don't get it. You kill and covet, but you cannot have what you want. You quarrel and fight. You do not have, because you do not ask God. When you ask, you do not receive, because you ask with wrong motives, that you may spend what you get on your pleasures. You adulterous people, don't you know that friendship with the world is hatred toward God? Anyone who chooses to be a friend of the world becomes an enemy of God. Or do you think Scripture says without reason that the spirit he caused to live in us envies intensely? But he gives us more grace. That is why Scripture says: "God opposes the proud but gives grace to the humble." Submit yourselves, then, to God. Resist the devil, and he will flee from you. Come near to God and he will come near to you. Wash your hands, you sinners, and purify your hearts, you double-minded. James 4:1-8

Meanwhile, Saul was still breathing out murderous threats against the Lord's disciples. He went to the high priest and asked him for letters to the synagogues in Damascus, so that if he found any there who belonged to the Way, whether men or women, he might take them as prisoners to Jerusalem. As he neared Damascus on his journey, suddenly a light from heaven flashed around him. He fell to the ground and heard a voice say to him, "Saul, Saul, why do you persecute me?" "Who are you, Lord?" Saul asked. "I am Jesus, whom you are persecuting," he replied. Acts 9:1-5

Do not take revenge, my friends, but leave room for God's wrath, for it is written: "It is mine to avenge; I will repay," says the Lord. Romans 12:19

The commandments, "Do not commit adultery," "Do not murder," "Do not steal," "Do not covet," and whatever other commandment there may be, are summed up in this one rule: "Love your neighbor as yourself." Romans 13:9