2 Kings 20:9
Isaiah said, “This will be the sign to you from the Lord, that He will do the thing that He has spoken: shall the shadow [indicating the time of day] go forward ten steps, or go backward ten steps?”
Isaiah 38:7-8
“This shall be the sign to you from the Lord, that the Lord will do this thing that He has spoken:
Matthew 16:1-4
Now the Pharisees and Sadducees came up, and testing Jesus [to get something to use against Him], they asked Him to show them a sign from heaven [which would support His divine authority].
Mark 8:11-12
The Pharisees came out and began to argue [contentiously and debate] with Him, demanding from Him a sign from heaven, to test Him [because of their unbelief].
Luke 11:29-30
Now as the crowds were increasing [in number], He began to say,