1 John 4:13-15

Amplified Bible

¹³ By this we know [with confident assurance] that we abide in Him and He in us, because He has given to us His [Holy] Spirit. ¹⁴ We [who were with Him in person] have seen and testify [as eye-witnesses] that the Father has sent the Son to be the Savior of the world.

¹⁵ Whoever confesses and acknowledges that Jesus is the Son of God, God abides in him, and he in God.