What does it mean to be a 'saver of death unto death'?

In 2 Corinthians 2:16, Paul mentions that 'to the one we are the savor of death unto death; and to the other the savor of life unto life.' This profound phrase expresses the reality that the gospel carries a dual message. For those who are hardened, like Pharaoh, the declaration of God's truth leads to condemnation and spiritual death, whereas for believers, it signifies salvation and eternal life. This serves as a powerful reminder of the efficacy of God’s word; it is both a call to repentance and a warning of judgment. The distinction isn't in the message itself but in the hearts of the listeners. The sovereign work of God determines how each receives it—either as death or as life, aligning with the historic reformed understanding of predestination.