1 Corinthians 1:9

9Faithful [is]πιστὸςὁGodθεὸςbyδι’whomοὗyou were calledἐκλήθητεintoεἰςfellowshipκοινωνίανwith theτοῦSonυἱοῦof HimαὐτοῦJesusἸησοῦChristΧριστοῦtheτοῦLordκυρίουof usἡμῶν.

Faithful [is] God, by whom you⁺ were called into fellowship with His Son Jesus Christ our Lord.