Augustine of Hippo
Catena Aurea · Matthäusevangelium 2
Then Herod, when he saw that he was mocked of the wise men, was exceeding wroth, and sent forth, and slew all the children that were in Bethlehem, and in all the coasts thereof, from two years old and under, according to the time which he had diligently enquired of the wise men.
(de Cons. Ev. ii. 11.) Or, disturbed by pressure of still more imminent dangers, Herod’s thoughts are drawn to other thoughts than the slaughter of children, he might suppose that the Magi, unable to find Him whom they had supposed born, were ashamed to return to him. So the days of purification being accomplished, they might go up in safety to Jerusalem. And who does not see that that one day they may have escaped the attention of a King occupied with so many cares, and that afterwards when the things done in the Temple came to be spread abroad, then Herod discovered that he had been deceived by the Magi, and then sent and slew the children.