In St Luke’s account Mat 26:43-44 are peculiar to his Gospel. The use of ἀγωνία (ἅπαξ λεγ. in N.T.) by the same Evangelist has given the title to this passage.
St Luke also relates that ‘there appeared an angel unto him from heaven, strengthening him.’ There is, however, some reason for doubting the genuineness of these verses.