Parallel
1 Corinthians 15:14
Patriarchal Greek New Testament (1904) · Berean Standard Bible
εἰ δὲ Χριστὸς οὐκ ἐγήγερται, κενὸν ἄρα τὸ κήρυγμα ἡμῶν, κενὴ δὲ καὶ ἡ πίστις ὑμῶν.
And if Christ has not been raised, our preaching is worthless, and so is your faith.