2 Kings 20:9

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

Isaiah 38:7-8

And this shall be a sign unto you from the LORD, that the LORD will do this thing that he has spoken;

Matthew 16:1-4

The Pharisees also with the Sadducees came, and testing him desired that he would show them a sign from heaven.

Mark 8:11-12

And the Pharisees came forth, and began to question him, seeking of him a sign from heaven, testing him.

Luke 11:29-30

And when the people were gathered thick together, he began to say, This is an evil generation: they seek a sign; and there shall no sign be given it, but the sign of Jonah the prophet.

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 shall be a sign unto you from the LORD, that the LORD will do this thing that he has spoken;
Matthew 16:1
The Pharisees also with the Sadducees came, and testing him desired that he would show them a sign from heaven.
Mark 8:11
And the Pharisees came forth, and began to question him, seeking of him a sign from heaven, testing him.
Luke 11:29
And when the people were gathered thick together, he began to say, This is an evil generation: they seek a sign; and there shall no sign be given it, but the sign of Jonah the prophet.