When we are dedicated to Jesus, walking by faith in His love, He works in us and through us to accomplish the things He wants in our lives.
Ephesians 3:16 That he would grant you, according to the riches of his glory, to be strengthened with might by his Spirit in the inner man;
In other words, it doesn’t fall to us to make the Christian life happen. Our duty is to yield to Him.
When we do, His power transcends our weakness and enables us to live for the Lord and to accomplish great things for His glory.