1 John 4:13

13ByἘνthisτούτῳwe knowγινώσκομενthatὅτιinἐνHimαὐτῷwe abideμένομενandκαὶHeαὐτὸςinἐνusἡμῖν,becauseὅτιfrom outἐκtheτοῦSpiritπνεύματοςof HimαὐτοῦHe has givenδέδωκενto usἡμῖν.

In this we know that we remain in Him and He in us: because from out of His Spirit He has given to us.