Believers know they are no longer slaves to sin because they have a new master, Jesus Christ, and their nature has been transformed.
In Romans 6:16-20, Paul delineates the concept of servitude by asserting that whoever we obey becomes our master. Before salvation, we were slaves to sin, but upon receiving Christ, we become servants of righteousness. The transformation within a believer is profound; they now possess a new nature that desires to obey God rather than sin. The presence of this desire for righteousness is evidence that one is no longer under sin's dominion. Moreover, Paul reminds believers that true freedom comes from being liberated from the power of sin, thus becoming slaves to righteousness instead. The change in allegiance from sin to God is a testimony to the work of salvation.
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