How do we know that God has the authority to condemn sin?

God, as the Holy Sovereign of the universe, has the ultimate authority to establish moral law. The law serves as a reflection of His perfect holiness, and any transgression of that law results in condemnation. Romans 6:23 states, 'For the wages of sin is death,' revealing that sin intrinsically leads to separation from God. Moreover, the condemnation we face for sin is not arbitrary; it is a just outcome of violating a holy standard defined by God Himself. Thus, His authority to condemn is legitimate, as He is the very definition of right and wrong, providing a clear framework through which we can understand sin's repercussions.