1 John 4:12

No one has seen God at any time. If we love one another, God abides in us, and His love has been perfected in us.

Surrounding context

4:11 Beloved, if God so loved us, we also ought to love one another.

4:12 No one has seen God at any time. If we love one another, God abides in us, and His love has been perfected in us.

4:13 By this we know that we abide in Him, and He in us, because He has given us of His Spirit.