(Pro 28:22 KJV) He that hasteth to be rich hath an evil eye, and considereth not that poverty shall come upon him.
The New Testament mentions a spiritual gift called discernment. Its primary function is to have a sensitivity to the difference between good and evil. Like most gifts, there is a level of spiritual skill that can be developed or practiced. For instance some people have the gift of giving. All believers are expected to be stewards. Some are evangelists, all are to be witnesses. Often the spiritual gift develops as we cultivate the gifts of the Spirit.
Some people who resist the leadership of the Holy Spirit develop what is here called an “evil” (7451a) “eye” (5869). I guess it might be considered just the opposite of the gift of discernment. This person seeks out and recognizes evil. It is the result of many choices.
So? Little bits add up to major bits. If we work on the little things then the big things will often take care of themselves.