“In disarming Peter, Christ disarmed all Christians.” – Tertullian
I don’t think so.
First of all Jesus didn’t disarm Peter; Jesus said, “Put your sword back in its place,” to me that means, ‘this is not the time or the place for that, God has a bigger plan.’
Secondly, the word ‘weapon,’ is a concept, not an object. Almost any object can be used as a weapon.
Thirdly, objects don’t kill on their own, the danger resides in the heart of the person holding the object.
Jesus went on to say, “for all who draw the sword will die by the sword.”
I believe this can be taken spiritually, or literally.
Spiritually, I see a parallel between these two verses; “Eat of this tree and you will surely die.” And “Draw the sword, and die by the sword.” By eating the fruit, or buying a weapon out of paranoia to protect yourself, you are leaning on your own understanding, going your own way, and thereby spiritually stepping outside of God’s umbrella of protection.
Literally, it means just what it says, pulling out a sword, or a gun, and waving it around, can get you killed.
Peace officers and soldiers are in a category of their own. A person may find a cause worth dying for, and decide to become a Peace Officer, or a Soldier, knowingly placing their life on the line for the safety of others.
In my opinion, whether or not a Christian can become a Peace Officer, or a Soldier, is not up for debate, that is an individual decision, and we are forbidden to judge.
In the Old Testament, God did specifically send believers into battle with weapons. Two examples are; David and Goliath, and Gideon.
In the New Testament, Jesus introduced us to some better weapons; The Sword of Truth, and The Cross.
Some Christians say, “To pick up a sword, you have to put down your cross,” but I have some Christian friends and relatives who proudly carry both.
Submit your life to Jesus, and the Holy Spirit will lead and guide you into all truth; and if ever in doubt, do the most loving thing for everyone concerned.