Remain in me, and I will remain in you. Just as the branch cannot bear fruit by itself, unless it remains in the vine, so neither can you unless you remain in me. “I am the vine; you are the branches. The one who remains in me—and I in him—bears much fruit, because apart from me you can accomplish nothing. If anyone does not remain in me, he is thrown out like a branch, and dries up; and such branches are gathered up and thrown into the fire, and are burned up. If you remain in me and my words remain in you, ask whatever you want, and it will be done for you. My Father is honored by this, that you bear much fruit and show that you are my disciples. “Just as the Father has loved me, I have also loved you; remain in my love. If you obey my commandments, you will remain in my love, just as I have obeyed my Father’s commandments and remain in his love.
As for you, what you have heard from the beginning must remain in you. If what you heard from the beginning remains in you, you also will remain in the Son and in the Father.
1 John 2:24
By this we know that we reside in God and he in us: in that he has given us of his Spirit. And we have seen and testify that the Father has sent the Son to be the Savior of the world. If anyone confesses that Jesus is the Son of God, God resides in him and he in God. And we have come to know and to believe the love that God has in us. God is love, and the one who resides in love resides in God, and God resides in him.
1 John 4:13-16
So that Christ may dwell in your hearts through faith; and that you, being rooted and grounded in love, may be able to comprehend with all the saints what is the breadth and length and height and depth, and to know the love of Christ which surpasses knowledge, that you may be filled up to all the fullness of God.
Therefore if anyone is in Christ, he is a new creature; the old things passed away; behold, new things have come.
2 Corinthians 5:17