He overcame the world and gave us the victory, the power to subdue this world. That’s what John affirms in our opening verse. The word, “overcometh” means to have victory over, to subdue, conquer, and to prevail over.
Do you know that the word confession in this context means speaking the same thing in consent? If God has said something, and you say something that’s in consonance with what He has said, that’s confession.