Isaiah 8:18

18 aBehold, I and bthe children whom the Lord has given me are signs and portents in Israel from the Lord of hosts, who dwells on Mount Zion.

Isaiah 20:2-4

2at that time the Lord spoke by Isaiah the son of Amoz, saying, “Go, and loose the sackcloth from your waist and take off your sandals from your feet,” and he did so, walking cnaked and barefoot.

3Then the Lord said, “As my servant Isaiah has walked naked and barefoot for three years das a sign and a portent against Egypt and Cush,
Probably Nubia
4so shall the fking of Assyria lead away the Egyptian captives and the Cushite exiles, both the young and the old, naked and barefoot, with buttocks uncovered, the nakedness of Egypt.

Ezekiel 4:3

3And you, take an iron griddle, and place it as an iron wall between you and the city; gand set your face toward it, hand let it be in a state of siege, and press the siege against it. This is ia sign for the house of Israel.

Ezekiel 12:11

11Say, jI am a sign for you: kas I have done, so shall it be done to them. They shall go into exile, into captivity.’

Ezekiel 24:24

24Thus shall Ezekiel be to you la sign; maccording to all that he has done you shall do. When this comes, then nyou will know that I am the Lord God.’

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