But in this the truth is also shown to be what was written, that Jesus Christ, “although he was rich, became a poor man.” Therefore, for this reason, he chose both a poor mother, from whom he was born, and a poor homeland, about which it is said, “And you, Bethlehem, you are the least among the tribes of Judah” and the rest.
Source: HOMILIES ON LEVITICUS 8.4.3