Why did Satan sin

Pride (Proverbs 16:18). Satan’s original name was Lucifer. He was the Guardian cherub in Eden (Ezekiel 28:14). He wore precious stones. He took notice of his beauty (Ezekiel 28:17). Seeing how beautiful he was, his pride took over, and he tried to replace God (Isaiah 14:13). Apparently, the angels had a freewill back then. Satan chose to sin. He got one-third of the other angels to follow him (Revelation 12:4). They all sinned and will face some dire consequences (Matthew 25:41).

Mankind also has free will. He can choose God or Satan. If he chooses God eternal life awaits him (John 3:16). If he chooses the world the same fate awaits him as Satan and the fallen angels (Galatians 5:19-21). It is pride that keeps people from inheriting eternal life.

Pride

When pride comes, then comes disgrace, but with humility comes wisdom. 

Why would pride bring disgrace? what is it about pride that could do that? Isn’t a little pride a good thing; don’t they say that you should have pride in what you do? 

Maybe that is it, right there: Have pride in what you do. 

There is more than one kind of pride, just as there is more than one kind of love. We can be prideful, or we can be proud of the way we do things, and these are quite different. To be proud of our work means that we are pleased to do our work the right way; with quality and integrity. To be prideful on the other hand, is not so good, for in that case, we believe that we are better than other people are, worth more, that we are more privileged, and all too often that the rules do not apply to us. An attitude like this leads a person to trouble. 

This is the attitude that cuts corners, makes crooked deals and is willing to cheat others; why not if we are better than they are? This leads to disgrace sooner or later when we are found out. 

Humility on the other hand, leads a person in a different direction, for a humble man or woman does not believe they are more worthy or superior to anyone else. They go about their business fairly, openly and with justice before God and Man, and that is wisdom itself.