“Yet he did not waver through unbelief regarding the promise of God, but was strengthened in his faith and gave glory to God, being fully persuaded that God had power to do what he had promised” -Romans 4:20-21
Are you fully persuaded that God has the power to do what he promised? Or do you find yourself wavering in whether God can and will do what He said? Abraham believed, and because he did, he saw the promise of God fulfilled in his life. God wants to fulfill the promise He gave you, but first, you have to have faith and be fully persuaded that He will do what He said.