1 John 4:13

Ἐν τούτῳ γινώσκομεν ὅτι ἐν αὐτῷ μένομεν καὶ αὐτὸς ἐν ἡμῖν, ὅτι ἐκ τοῦ Πνεύματος αὐτοῦ δέδωκεν ἡμῖν.

En toytō ginōskomen oti en aytō menomen kai aytos en ēmin, oti ek toy Pneymatos aytoy dedōken ēmin.

King James Version (KJV)

Hereby know we that we dwell in him, and he in us, because he hath given us of his Spirit.

Modern English

This is how we know that we live in him and he in us: He has given us of his Spirit.