Parallel
1 Corinthians 15:2
Patriarchal Greek New Testament (1904) · Berean Standard Bible
δι᾽ οὗ καὶ σῴζεσθε, τίνι λόγῳ εὐηγγελισάμην ὑμῖν εἰ κατέχετε, ἐκτὸς εἰ μὴ εἰκῆ ἐπιστεύσατε.
By this gospel you are saved, if you hold firmly to the word I preached to you. Otherwise, you have believed in vain.