Thomas Aquinas

And he said to them: behold, we go up to Jerusalem, etc. Here is noted the firmness of his resolve; hence behold, i.e., I am of the same resolve and of the same will, because I do not change. Sirach 27:12: a fool is changed as the moon, but a wise man continues as the sun in his wisdom. Likewise, it was by his own will. Isaiah 53:7: he was offered because it was his own will. He indicates the place, because Jerusalem. Luke 13:33: it is not fitting that a prophet perish outside of Jerusalem. And why? …

Commentary on Matthew ↗