But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.
Berean Study Bible (BSB) - 1 John 2:5 >But if anyone keeps His word, the love of God has been truly perfected in him. By this we know that we are in Him:
Textus Receptus (TR) - 1 John 2:5 >ὃς δ᾿ ἂν τηρῇ αὐτοῦ τὸν λόγον, ἀληθῶς ἐν τούτῳ ἡ ἀγάπη τοῦ Θεοῦ τετελείωται. Ἐν τούτῳ γινώσκομεν ὅτι ἐν αὐτῷ ἐσμέν·