Isaiah 20:3

And the Lord said, As my servant Isaiah has gone unclothed and without shoes for three years as a sign and a wonder to Egypt and Ethiopia,

Isaiah 8:18

See, I and the children whom the Lord has given me, are for signs and for wonders in Israel from the Lord of armies, whose resting-place is in Mount Zion.

Numbers 14:34

And as you went through the land viewing it for forty days, so for forty years, a year for every day, you will undergo punishment for your wrongdoing, and you will see that I am against you.

Isaiah 18:1-7

Ho! land of the sounding of wings, on the other side of the rivers of Ethiopia:

Isaiah 37:9

And when news came to him that Tirhakah, king of Ethiopia, had made an attack on him, ... And he sent representatives to Hezekiah, king of Judah, saying,

Isaiah 43:3

For I am the Lord your God, the Holy One of Israel, your saviour; I have given Egypt as a price for you, Ethiopia and Seba for you.

Ezekiel 4:5-6

For I have had the years of their sin measured for you by a number of days, even three hundred and ninety days: and you will take on yourself the sin of the children of Israel.

Revelation 11:2-3

But do not take the measure of the space outside the house; because it has been given to the nations: and the holy town will be under their feet for forty-two months.

Treasury of Scripture Knowledge

Summary

And the LORD said, Like as my servant Isaiah hath walked naked and barefoot three years for a sign and wonder upon Egypt and upon Ethiopia;

A sign

Bible References

Three

Numbers 14:34
And as you went through the land viewing it for forty days, so for forty years, a year for every day, you will undergo punishment for your wrongdoing, and you will see that I am against you.
Ezekiel 4:5
For I have had the years of their sin measured for you by a number of days, even three hundred and ninety days: and you will take on yourself the sin of the children of Israel.
Revelation 11:2
But do not take the measure of the space outside the house; because it has been given to the nations: and the holy town will be under their feet for forty-two months.

A sign

Isaiah 8:18
See, I and the children whom the Lord has given me, are for signs and for wonders in Israel from the Lord of armies, whose resting-place is in Mount Zion.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain