John 15: 5 says
5 “I am the vine; you are the branches. If you remain in me and I in you, you will bear much fruit; apart from me you can do nothing.
1 John 2:6 (NIV)
6 Whoever claims to live in him must live as Jesus did.
1 John 3:9-10 (NIV)
9 No one who is born of God will continue to sin, because God’s seed remains in them; they cannot go on sinning, because they have been born of God.10 This is how we know who the children of God are and who the children of the devil are: Anyone who does not do what is right is not God’s child, nor is anyone who does not love their brother and sister.