And hereby we know that we are of the truth, and shall assure our hearts before him.
Berean Study Bible (BSB) - 1 John 3:19 >And by this we will know that we belong to the truth, and will assure our hearts in His presence:
Textus Receptus (TR) - 1 John 3:19 >Καὶ ἐν τούτῳ γινώσκομεν ὅτι ἐκ τῆς ἀληθείας ἐσμέν, καὶ ἔμπροσθεν αὐτοῦ πείσομεν τὰς καρδίας ἡμῶν,