Satan takes God's Word...

For he will command his angels concerning you
to guard you in all your ways.
On their hands they will bear you up,
lest you strike your foot against a stone.
You will tread on the lion and the adder;
the young lion and the serpent you will trample underfoot. (Psalm 91:11-13)

and then He uses it...

...and said to him, "If you are the Son of God, throw yourself down, for it is written,
"'He will command his angels concerning you,'
"'On their hands they will bear you up,
lest you strike your foot against a stone.'"

It is when we hear the words..."Did God REALLY say..." that we need to put our guard up.  Perhaps Satan didn't realize at the time that the passage he was using to tempt our Lord was part of a prophecy about himself.

You will tread on the lion and the adder;
the young lion and the serpent you will trample underfoot.

When Satan was tempting Christ...he was reminding Jesus (not that He didn't already know) that the tempter would be defeated.

I will put enmity between you and the woman,
and between your offspring and her offspring;
he shall bruise your head,
and you shall bruise his heel." (Gen 3:15)

And Christ (outside of time and space, knowing what would be written in Scripture)

Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour. (1 Peter 5:8)

Satan is an expert at deception...we need to be sober-minded and watchful.  That doesn't mean "don't have fun"...it means that we should be aware that Satan will use whatever he can to draw us away from the Strong Tower