Confession, that is, verbally affirming that God‘s word is indeed so, has had a bad rap needlessly. Jesus actually taught this indispensable principle of the word of God in Mark 11:22-25.
Basically, your faith will do you no good if you don’t release it by words and or actions. That’s how you became a Christian. Romans 10:9–10. That is also how God intends for you to enjoy all of the other aspects of the abundant life, besides being born again, that Jesus died and paid for you to have.

