I want to float an idea but don’t have time to develop it into a full-fledged argument. Still I want to propose a reading for an unusual text we find in the Synoptic Gospels. Since Mark is likely the first Gospel written, I’ll work from there recognizing that what is true for Mark is also true for Matthew and Luke.
Prophets were known not only for speaking a message but also acting it out on occasion. This is uncontroversial. Isaiah (ch. 20) walks naked for two years to portray what would happen to the Assyrian captives of Egypt and Cush. Jeremiah (ch. 32) buys real estate as the barbarians are at the gate to depict a hopeful future after the exile. Ezekiel (ch. 4) famously constructs a small model of Jerusalem, portrays a siege against it, lies down on his left side for 390 days as a sign to Israel of things to come. Then God instructs him to lie on his right side for 40 more days and prophesy against it. Prophetic words were certainly memorable but prophetic actions garnered even more attention.