How do we know repentance is more than mere remorse?

Repentance, in the biblical sense, is not merely an emotional response to wrongdoing but rather a profound recognition of the individual’s inherent sinfulness. This is exemplified in David's declaration of being 'shapen in iniquity' (Psalm 51:5). It involves an understanding that sin is not just an action but also an intrinsic condition that necessitates God's mercy. Authentic repentance enables the believer to detest not only the deeds done but also the sin residing within them, fostering a deeper reliance on Christ's righteousness for salvation.