When good men do nothing, evil triumphs. Evil, sin and sinful men must be opposed. God commands those who are good, not just to avoid evil but actively oppose it.
Christians are to not only to "have no fellowship with the unfruitful works of darkness, but (also) reprove them" (Eph. 5:11). Those who do nothing about sin and evil, help the sin and evil to prevail. One who is silent when there are those around him in sin becomes a partaker with them (Eph. 5:7).
In the days of Elijah, the silence of many had allowed the evil of Ahab and Jezebel to prevail throughout the land of Israel. "And Elijah came unto all the people, and said, How long halt ye between two opinions? If the Lord be God, follow him: but if Baal, then follow him. And the people answered him not a word" (1 Kings 18:21). The silence of the people spoke volumes of their indecisiveness and inaction. Their failure to stand up, speak up and speak out permitted wicked and evil men to run rampant.
Jesus told of a traveler who was robbed, beaten and left him half dead. The men who did this were wicked and did a very wicked thing. But the Levite and priest allowed this evil to continue unanswered by doing nothing as they each "passed by on the other side" (Luke 10:31-32). Fortunately for the traveler there was one man, a Samaritan, who was willing to stand up for what was right (Luke 10:33-36).
Jesus warned "He that is not with me is against me; and he that gathereth not with me scattereth abroad" (Matt. 12:30). In the fight against evil there is no middle ground, no gray area, no neutrality. Those who are not actively and vigorously fighting against evil are helping evil to triumph.
