Yesaya 20:3

20:3 Later the Lord explained, “In the same way that my servant Isaiah has walked around in undergarments and barefoot for the past three years, as an object lesson and omen pertaining to Egypt and Cush,

Yehezkiel 12:11

12:11 Say, ‘I am an object lesson for you. Just as I have done, it will be done to them; they will go into exile and captivity.’