2 Kings 20:9

And Isaiah said, - This unto thee, is the sign from Yahweh, that Yahweh will do the thing which he hath spoken, The shadow hath gone forward ten steps, shall it return ten steps?

Isaiah 38:7-8

And, this, to thee, shall be the sign from Yahweh, - that Yahweh will do this thing which he hath spoken: -

Matthew 16:1-4

And, the Pharisees and Sadducees coming near, putting him to the test, requested him, a sign out of the heaven, to shew unto them.

Mark 8:11-12

and forth came the Pharisees, and began discussing with him, seeking of him, a sign from the heaven, testing him.

Luke 11:29-30

And, as the multitudes were thronging together, he began to be saying - This generation, is, a wicked generation: A sign, it is seeking, and, a sign, shall not be given it, save the sign of Jonah.

Treasury of Scripture Knowledge

Summary

And Isaiah said, This sign shalt thou have of the LORD, that the LORD will do the thing that he hath spoken: shall the shadow go forward ten degrees, or go back ten degrees?

Bible References

This sign

Isaiah 38:7
And, this, to thee, shall be the sign from Yahweh, - that Yahweh will do this thing which he hath spoken: -
Matthew 16:1
And, the Pharisees and Sadducees coming near, putting him to the test, requested him, a sign out of the heaven, to shew unto them.
Mark 8:11
and forth came the Pharisees, and began discussing with him, seeking of him, a sign from the heaven, testing him.
Luke 11:29
And, as the multitudes were thronging together, he began to be saying - This generation, is, a wicked generation: A sign, it is seeking, and, a sign, shall not be given it, save the sign of Jonah.