Mark 1:2

2AsΚαθὼςit has been writtenγέγραπταιinἐντῷIsaiahἨσαΐᾳtheτῷprophetπροφήτῃ·BeholdἸδοὺI sendἀποστέλλωtheτὸνmessengerἄγγελόνof Meμουbeforeπρὸfaceπροσώπουof Youσου,whoὃςwill prepareκατασκευάσειtheτὴνwayὁδόνof Youσου·

Just as it has been written in Isaiah the prophet: “Behold, I send My messenger before Your face, who will prepare Your way.”