Matthew 11:14

14Andκαὶifεἰyou are willingθέλετεto receive [it]δέξασθαι,heαὐτόςisἐστινElijahἨλίαςthe oneὁbeing aboutμέλλωνto comeἔρχεσθαι.

And if you⁺ are willing to receive [it], he is Elijah, the one being about to come.