Hereby perceive we the love [ of God], because he laid down his life for us: and we ought to lay down [our] lives for the brethren.
Berean Study Bible (BSB) - 1 John 3:16 >By this we know what love is: Jesus laid down His life for us, and we ought to lay down our lives for our brothers.
Textus Receptus (TR) - 1 John 3:16 >Ἐν τούτῳ ἐγνώκαμεν τὴν ἀγάπην, ὅτι ἐκεῖνος ὑπὲρ ἡμῶν τὴν ψυχὴν αὐτοῦ ἔθηκε· καὶ ἡμεῖς ὀφείλομεν ὑπὲρ τῶν ἀδελφῶν τὰς ψυχὰς τιθέναι.