2 Kings 20:9
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?
Isaiah 38:7-8
And this shall be a sign unto thee from the LORD, that the LORD will do this thing that he hath spoken;
Matthew 16:1-4
The Pharisees also with the Sadducees came, and tempting desired him that he would shew them a sign from heaven.
Mark 8:11-12
And the Pharisees came forth, and began to question with him, seeking of him a sign from heaven, tempting 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 Jonas the prophet.