Parallel
Romans 6:17
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
Χάρις δὲ τῷ θεῷ, ὅτι ἦτε δοῦλοι τῆς ἁμαρτίας, ὑπηκούσατε δὲ ἐκ καρδίας εἰς ὃν παρεδόθητε τύπον διδαχῆς·
But thanks be to God that, though you once were slaves to sin, you wholeheartedly obeyed the form of teaching to which you were committed.