I have set thee for a sign— That is, "as a man whose ways, words, and actions, shall be signs and figures to them of what is to happen: all in your person shall be significative and prophetical."
Related Commentaries of Ezekiel 12:6
Ezekiel 12:6
6 In their sight shalt thou bear it upon thy shoulders, and carry it forth in the twilight: thou shalt cover thy face, that thou see not the ground: for I have set thee for a sign unto the house of Israel.