Isaiah 20:3

Then said Yahweh, - As my servant Isaiah, hath walked, disrobed and barefoot three years as a sign and a wonder against Egypt and against Ethiopia,

Isaiah 8:18

Lo! I and the children whom Yahweh hath given me, are for signs and for wonders in Israel, - from Yahweh of hosts, who is making his habitation in Mount Zion.

Numbers 14:34

By the number of the days wherein ye spied out the land - forty days, each day for a year, shall they bear your iniquities - forty years, - so shall ye know my opposition.

Isaiah 18:1-7

Ho! thou land of the buzzing of wings, - Which is beyond the rivers of Ethiopia:

Isaiah 37:9

And he heard it reported concerning Tirhakah king of Ethiopia, saying, He hath come forth to fight with thee, - so when he heard it, he sent messengers unto Hezekiah, saying:

Isaiah 43:3

For, I, - Yahweh, am, Thy God, The Holy One of Israel Ready to save thee, - I have given, as thy ransom, Egypt, Ethiopia and Seba, in thy stead.

Ezekiel 4:5-6

I therefore have appointed thee the years of their punishment, by the number of days a hundred and ninety days, - so shalt thou bear the iniquity of the house of Israel.

Revelation 11:2-3

and, the court that is outside the Sanctuary, cast thou outside, and do not measure, it, because it hath been given unto the nations, and, the holy city, shall they tread under foot, forty and 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
By the number of the days wherein ye spied out the land - forty days, each day for a year, shall they bear your iniquities - forty years, - so shall ye know my opposition.
Ezekiel 4:5
I therefore have appointed thee the years of their punishment, by the number of days a hundred and ninety days, - so shalt thou bear the iniquity of the house of Israel.
Revelation 11:2
and, the court that is outside the Sanctuary, cast thou outside, and do not measure, it, because it hath been given unto the nations, and, the holy city, shall they tread under foot, forty and two months.

A sign

Isaiah 8:18
Lo! I and the children whom Yahweh hath given me, are for signs and for wonders in Israel, - from Yahweh of hosts, who is making his habitation in Mount Zion.