He who is in you is greater than he who is in the world. -

1 Jn 4:4

God abides in us, and His love has been perfected in us.  By this we know that we abide in Him, and He abides in us, because He has given us of His Spirit. - 1 Jn 4:12, 13

Whoever confesses the Jesus is the Son of God, God abides in him, and he in God. - 1 Jn 4:15

God is love, and he who abides in love abides in God, and God in him. - 1 Jn 4:46

If what you heard from the beginning abides in you, you also will abide in the Son and in the Father. - 1 Jn 2:24

I will pray the Father, and He will give you another Helper, that He may abide with you forever-the Spirit of truth, whom the world cannot receive, because it neither sees Him nor knows Him; but you know Him, for He dwells with you and will be in you. - John 14:16-18

At that day you will know that I am in My Father, and you in Me, and I in you - Jn 14:20

A son abides forever - Jn 8:34

Abide in Me, and I in you - Jn 15:4

He who abides in Me, and I in him - Jn 15:5

If you abide in Me, and My words abide in you, you will ask what you desire, and it shall be done - Jn 15:7

Jesus prays for all believers:

that they may be one, as You, Father, are in Me, and I in You; that they also may be one in Us - Jn 17:21

I in them, and You in Me; - Jn 17:23

the love with which You loved Me may be in them; and I in them - Jn 17:29