Isaiah 38:7

And Isaiah said, This is the sign the Lord will give you, that he will do what he has said:

Judges 6:37-39

See, I will put the wool of a sheep on the grain-floor; if there is dew on the wool only, while all the earth is dry, then I will be certain that it is your purpose to give Israel salvation by my hand as you have said.

Isaiah 37:30

And this will be the sign to you: you will get your food this year from what comes up of itself, and in the second year from the produce of the same; and in the third year you will put in your seed, and get in the grain, and make vine-gardens, and take of their fruit.

Genesis 9:13

I will put my bow in the cloud and it will be for a sign of the agreement between me and the earth.

Judges 6:17-22

So he said to him, If now I have grace in your eyes, then give me a sign that it is you who are talking to me.

2 Kings 20:8-21

And Hezekiah said to Isaiah, What is to be the sign that the Lord will make me well, and that I will go up to the house of the Lord on the third day?

Isaiah 7:11-14

Make a request to the Lord your God for a sign, a sign in the deep places of the underworld, or in the high heavens.

Isaiah 38:22

And Hezekiah said, What is the sign that I will go up to the house of the Lord?

Treasury of Scripture Knowledge did not add

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