Many cults argue that unless a person keeps the law, even though it is something the cult has created and has nothing to do with biblical law, then that is an effective argument against being saved by grace alone. The Apostle Paul answers this challenge in Romans 6:15-23 by counter-arguing that (1) even though a person is living by grace, that does not give him/her license to sin; (2) the law is of no effect, since the Christian should use it as a moral standard for moral living; (3) a person is a slave to the person/thing he is obedient toward, whether toward the law, which brings death, or toward God, which brings eternal life. Ultimately, the law is to lead a person to Christ, whereby the Christian is introduced to God's grace, which is unmerited, not merited. Moreover, depending on where a person puts his/her allegiance, he becomes enslaved thereby and garners the fruit of that allegiance amounting to eternal death or eternal life.