Aggravating all of these areas (of legalism) is a class of people who have come to be known as “controllers.” These are people who are not willing to let you live your life before God as you believe He is leading you. They have all the issues buttoned down and have cast-iron opinions about all of them. These people only know black and white. There are no gray areas to them. They insist you live your Christian life according to their rules and their opinions. If you insist on being free to live as God wants you to live, they will try to intimidate you and manipulate you one way or another. Their primary weapons are “guilt trips,” rejection, or gossip. These people must be resisted. We must not allow them to subvert the freedom we have in Christ.
Jerry Bridges