Parallel
1 Corinthians 15:2
Robinson-Pierpont Byzantine Textform · Berean Standard Bible
δι’ οὗ καὶ σῴζεσθε· τίνι λόγῳ εὐηγγελισάμην ὑμῖν, εἰ κατέχετε, ἐκτὸς εἰ μὴ εἰκῇ ἐπιστεύσατε.
By this gospel you are saved, if you hold firmly to the word I preached to you. Otherwise, you have believed in vain.