Deuteronomy 18:22
When a prophet speaks in the name of the LORD and the message does not come to pass or come true, that is a message the LORD has not spoken. The prophet has spoken presumptuously. Do not be afraid of him.

Exodus 7:22
But the magicians of Egypt did the same things by their magic arts. So Pharaoh's heart was hardened, and he would not listen to Moses and Aaron, just as the LORD had said.

1 Kings 13:3
That day the man of God gave a sign, saying, "This is the sign that the LORD has spoken: 'Surely the altar will be split apart, and the ashes upon it will be poured out.'"

Jeremiah 28:9
As for the prophet who prophesies peace, only if the word of the prophet comes true will the prophet be recognized as one the LORD has truly sent."

Matthew 7:22, 23
Many will say to Me on that day, 'Lord, Lord, did we not prophesy in Your name, and in Your name drive out demons and perform many miracles?' . . .

Matthew 24:24
For false Christs and false prophets will appear and perform great signs and wonders that would deceive even the elect, if that were possible.

2 Corinthians 11:13-15
For such men are false apostles, deceitful workers, masquerading as apostles of Christ. . . .

2 Thessalonians 2:9-11
The coming of the lawless one will be accompanied by the working of Satan, with every kind of power, sign, and false wonder, . . .

Revelation 13:13, 14
And the second beast performed great signs to cause even fire from heaven to come down to earth in the presence of the people. . . .