(Proverbs 6:14 KJV) Frowardness is in his heart, he deviseth mischief continually; he soweth discord.
If you are reading this verse in isolation it is important to recognize that Solomon is not asking a question, he is making a statement. It is already established that there are evil people in the world. This is hard for many to grab hold of. We see things happening such as children being molested and brutal murders. Uninvolved bystanders are injured in drive-by shootings. Politicians are caught with their hand in the til. We see it and think it is the exception. It really isn’t. We see it and wonder how people could do such things.
Grab hold of this truth. There are large numbers of people who are only happy when they are wreaking havoc or disrupting lives. Don’t expect to understand it. Accept. If it is hard for you then ask yourself how Satan, who has been in the presence of God and has a knowledge of how things work better than you or I could ever hope for, can pretend he can win against God. I don’t think he plans on winning, just taking as many of us with him as he can.
So? Make sure you don’t join him. Be willing to punish his minions. Recognize the reality.