Kehillah in Corinth I 15:13-15

Orthodox Jewish Bible

¹³ And if there is no Techiyas HaMesim, neither then has Rebbe, Melech HaMoshiach been raised.

¹⁴ And if Rebbe, Melech HaMoshiach has not been raised, then our preaching to you was in vain and also in vain is your emunah (faith).

¹⁵ Moreover, we are found also to be edei sheker (false witnesses) [SHEMOT 20:16; DEVARIM 19:16-21] misrepresenting Hashem Himself, because we gave solemn edut (testimony 1:6) as in the presence of G-d that Hashem raised Rebbe, Melech HaMoshiach—whom, of course, He did not raise if, as you say, the Mesim are not bemetzius (in fact) raised.