When those days were over and they were returning home, the boy Jesus remained behind in Jerusalem, but His parents were unaware He had stayed.
Textus Receptus (TR) - Luke 2:43 >καὶ τελειωσάντων τὰς ἡμέρας, ἐν τῷ ὑποστρέφειν αὐτούς, ὑπέμεινεν Ἰησοῦς ὁ παῖς ἐν Ἱερουσαλήμ· καὶ οὐκ ἔγνω Ἰωσὴφ καὶ ἡ μήτηρ αὐτοῦ·