Lordship Salvation says that saving faith produces a changed life. The Bible contains evidence to support that view. The Old and New Testaments teach that obedience to God matters because it is evidence of heart change.The basis for how we live should be love of God and others (Deuteronomy 6:5; Leviticus 19:9; Matthew 22:36-40). Jesus used the metaphor of a good tree producing fruit to teach the idea that works often reveal the heart (Matthew 12:33). The apostle James spoke of works as being evidence of faith (James 2:14-17). Even so, the danger of the Lordship Salvation theology is that some may misunderstand it and believe they can work their way to salvation. Scripture is clear that salvation is by grace through faith in Christ, not by works (Ephesians 2:8-9). The thief on the cross beside Jesus was saved, even though he presumably lived in sin; Jesus promised him salvation, though, because he had placed his faith in Christ as Lord (Luke 23:39-43). Believers work as a result of their salvation, not for it.
Is someone who claims to be a Christian yet does not show evidence of good works truly a Christian? Lordship Salvation advocates argue that faith in Christ will cause a person to live differently. For example, 2 Corinthians 5:17 teaches, "Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come." Other passages suggest a similar view of the changed life of the believer (Galatians 5:22-23; James 2:14-26).
Believers must be careful about making assumptions concerning others’ salvation. The degree and speed of spiritual growth varies from person to person. When people evaluate others’ "change," there is much room for error or misunderstanding. While the Bible teaches that those who have been saved will not want to continue living in sin (Romans 6:2), the Holy Spirit sanctifies us progressively (1 Thessalonians 5:23–24). This does not deny the person's salvation but shows the need for spiritual development.
Salvation takes place when God's grace leads a person to Christ. Nothing more is required to begin. We are called to show our faith by our actions (James 2:17), realizing everyone struggles and needs God's grace daily.