If you don't know what God has written, Satan has a field day with your life. Fortunately Jesus knew what was written. This truth, revealed below in the scriptures, has been played out throughout all of history. What makes a Hitler, Stalin, Mao, Pol Pot, Nero ....
Gen 3:1-5
1 Now the serpent was more subtle than any beast of the field which the LORD God had made. And he said unto the woman, Yea, hath God said, Ye shall not eat of every tree of the garden?
2 And the woman said unto the serpent, We may eat of the fruit of the trees of the garden:
3 But of the fruit of the tree which is in the midst of the garden, God hath said, Ye shall not eat of it, neither shall ye touch it, lest ye die.
4 And the serpent said unto the woman, Ye shall not surely die:
5 For God doth know that in the day ye eat thereof, then your eyes shall be opened, and ye shall be as gods, knowing good and evil.
Here is the lie that humanity has swallowed hook, line and sinker. You can be a God and determine right from wrong on your own. Who cares that every human being differs in their view of right and wrong, and death and destruction is the result.
Matt 4:1-11
1 Then was Jesus led up of the Spirit into the wilderness to be tempted of the devil.
2 And when he had fasted forty days and forty nights, he was afterward an hungered.
3 And when the tempter came to him, he said, If thou be the Son of God, command that these stones be made bread.
4 But he answered and said, It is written, Man shall not live by bread alone, but by every word that proceedeth out of the mouth of God.
5 Then the devil taketh him up into the holy city, and setteth him on a pinnacle of the temple,
6 And saith unto him, If thou be the Son of God, cast thyself down: for it is written, He shall give his angels charge concerning thee: and in their hands they shall bear thee up, lest at any time thou dash thy foot against a stone.
7 Jesus said unto him, It is written again, Thou shalt not tempt the Lord thy God.
8 Again, the devil taketh him up into an exceeding high mountain, and showeth him all the kingdoms of the world, and the glory of them;
9 And saith unto him, All these things will I give thee, if thou wilt fall down and worship me.
10 Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.
11 Then the devil leaveth him, and, behold, angels came and ministered unto him.