Legalism, in Christianity, is a term referring to an improper fixation on law or codes of conduct for a person to merit or obtain salvation, blessing from God, or fellowship with God, with an attendant misunderstanding of the grace of God. Simply put, legalism is the belief that obedience to the law or a set of rules is the pre-eminent principle of redemption and/or favor with God. Its opposite extreme is antinomianism which claims that moral laws are not binding on Christian believers. * A Study on the Law and Legalism (YouTube), by Tim Conway