'Show Signs' in the Bible

“I will show signs and wonders [displaying My power] in the heavens and on the earth,Blood and fire and columns of smoke.

Taking with him Peter and the two sons of Zebediah, he began to show signs of sadness and deep distress of mind.

for there shall arise false Christs and false prophets, and shall show signs and wonders, that they may lead astray, if possible, the elect.

He took with him Peter, James, and John; and began to show signs of great dismay and deep distress of mind.