Mark 9:23 Jesus said to him, “If you can believe, all things are possible to him who believes.”
We have been given authority but we fail because of the application. The Holy Spirit must train us to use the power.
Matthew 14:29-31 So He said, “Come.” And when Peter had come down out of the boat, he walked on the water to go to Jesus. But when he saw that the wind was boisterous, he was afraid; and beginning to sink he cried out, saying, “Lord, save me!” And immediately Jesus stretched out His hand and caught him, and said to him, “O you of little faith, why did you doubt?”
Pray that you manifest sonship. Jesus was not testing Peter but demonstrated what causes us to fail as children of God.
John 1:12 But as many as received Him, to them He gave the right to become children of God, to those who believe in His name: