The postmodern sensational teaching of the inherited churches takes these words to their dramatic limits. They ignore the obvious hyperbole and advance it to the next level. Maybe it makes for more exciting sermons for the congregants, but at the price of less understanding in the pews.
The ancient prophets not only delivered soliloquies of the Word of God, but in seeing, hearing, and acting they presented a type of 
what was to come. Isaiah walked naked for three years. [Is. 20] Jeremiah is wearing an ox’s yoke. [Jer. 27] Ezekiel drew a map of Jerusalem on a brick or tile. [Ezek. 4] Ezekiel, Zechariah, and John measured the temple.[Ezek. 41-42, Zech. 2:1-13, Rev. 11:1-2]
The two Hebrew words involved in this are signs; i.e. , ‘ot and wonders , mofetim.
‘ot is Translated as Signs
Then the LORD said to him, “Not so! If any one slays Cain, vengeance shall be taken on him sevenfold.” And the LORD put a mark on Cain, lest any who came upon him should kill him. Gen. 4:15
And God said, “This is the sign of the covenant which I make between me and you and every living creature that is with you, for all future generations: Gen. 9:12
Therefore the Lord himself will give you a sign. Behold, a young woman shall conceive and bear a son, and shall call his name Immanu-el. Is. 7:14