Luke 22:44

44Andκαὶhaving beenγενόμενοςinἐνagonyἀγωνίᾳmore earnestlyἐκτενέστερονHe was prayingπροσηύχετο·Andκαὶbecameἐγένετοtheὁsweatἱδρὼςof Himαὐτοῦlikeὡσεὶgreat dropsθρόμβοιof bloodαἵματοςfalling downκαταβαίνοντεςuponἐπὶtheτὴνgroundγῆν.

And having been in agony, He was praying more earnestly. And His sweat became like large drops of blood falling down upon the ground.