Parallel
1 Corinthians 1:9
Patriarchal Greek New Testament (1904) · Berean Standard Bible
πιστὸς ὁ Θεὸς δι᾽ οὗ ἐκλήθητε εἰς κοινωνίαν τοῦ υἱοῦ αὐτοῦ Ἰησοῦ Χριστοῦ τοῦ Κυρίου ἡμῶν.
God, who has called you into fellowship with His Son Jesus Christ our Lord, is faithful.