John Chrysostom

Wherefore he said likewise, "For I also am a man set under authority;" that is, Thou art God, and I man; I under authority, but Thou not under authority. If I therefore, being a man, and under authority, can do so much; far more He, both as God, and as not under authority. Thus with the strongest expression He desires to convince Him, that he saith this, as one giving not a similar example, but one far exceeding. …

Homily on the Gospel of Matthew 26 ↗

Augustine of Hippo

If I who am under command have yet power to command others, how much more Thou whom all powers serve!

Catena Aurea by Aquinas ↗

Jerome

For I am also a man under authority, having soldiers under me. I say to this one, 'Go,' and he goes; and to another, 'Come,' and he comes; and to my servant, 'Do this,' and he does it. He wanted to show that the Lord can fulfill his will not only through the coming of his body, but also through the ministry of angels.

Commentary on Matthew ↗

Thomas Aquinas

Then he states the comparison and proves the greater from the lesser. First, he describes the order of rank; secondly, the power (v. 9). The order is that some are over others, but do not have others over them; some are over others, but have another over them; some are under others and have none under them. Some, therefore, are in between, as he was; for he was under a tribune, but had soldiers under him. Hence he says, I say to one, "Go," and he goes, and to another, "Come," and he comes. …

Commentary on Matthew ↗