There are people who believe in God, and sincere Christians who have trusted Christ as their Savior – and yet have never really given their life to God.
What would it mean to give your life to God? It would mean to trust God’s sufficiency with every aspect of your life. Live your life as if you believe his Word and really do trust Him to be good and to do what is best for you.
“Not that we are sufficient of ourselves to think any thing as of ourselves; but our sufficiency is of God” – 2 Corinthians 3:5