The Bible teaches us that it is God who makes Christians. Paul says in Ephesians that God has made us alive together with Christ. God makes people into something that they were not before. We are not talking about something that men start, but it is the essential work of God.
Ephesians 2:4-7 But God, being rich in mercy, because of the great love with which he loved us, 5 even when we were dead in our trespasses, made us alive together with Christ– by grace you have been saved– 6 and raised us up with him and seated us with him in the heavenly places in Christ Jesus, 7 so that in the coming ages he might show the immeasurable riches of his grace in kindness toward us in Christ Jesus.