'Perform Signs' in the Bible

while You extend Your hand to heal, and signs and wonders (attesting miracles) take place through the name [and the authority and power] of Your holy Servant and Son Jesus.”

for they are [actually] the spirits of demons, performing [miraculous] signs. And they go out to the kings of the entire inhabited earth, to gather them together for the war of the great day of God, the Almighty.