Timothy, my son, I give you this instruction in keeping with the prophecies once made about you, so that by following them you may fight the good fight (1 Timothy 1:18 NIV).
The Passion Translation of the verse above says, “…use your prophecies as weapons….” That means weaponizing the prophecies that have been spoken concerning you. Use the prophetic words concerning your life, your future, your ministry, career, etc as a weapon in prosecuting the good fight of faith.
Ephesians 6:17 sheds more light on this; it says, “And take the helmet of salvation, and the sword of the Spirit, which is the word of God.” The sword of the spirit refers to the spoken word, and the spoken word is the prophetic word. It’s an offensive weapon.
There’re two things here about prophecies: There’s the prophecy that’s spoken over your life as an individual, and there’s also the Word of God that’s already written, which the Bible refers to as “…a more sure word of prophecy…” (2 Peter 1:19). When you pick that word that’s written concerning you and utter it in faith, that’s prophecy; you’re speaking forth “Rhema” which the Bible describes as the sword of the Spirit in Ephesians 6:17.
For example, the Bible says, “Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world” (1 John 4:4). That’s Logos (Greek). But when Satan comes out against you, or you want to launch an offensive against him, you say, “Devil, I’m of God, and I’ve overcome you because it’s written: Greater is He that’s in me than he that’s in the world.” Thus, you’ve weaponized that scripture!
When you utter those words as “Rhema,” they become the Word of God in your mouth. And the Word of God in your mouth is God talking. That’s also what we do in prayer; we speak forth the Word—the “Rhema” of God in supplications, prayers, intercessions, and giving of thanks in line with 1 Timothy 2:1.