And it came to pass, when the time was come that he should be received up, he steadfastly set his face to go to Jerusalem,
All Commentaries on Luke 9:51 Go To Luke 9
Cyril of Alexandria
AD 444
It says, “When the days drew near for him to be received up, he set his face to go to Jerusalem.” This means that after he would endure his saving passion for us, the time would come when he should ascend to heaven and dwell with God the Father, so he determined to go to Jerusalem. This is, I think, the meaning of his “set his face.” Commentary on Luke, Homily