How do we know the gospel is a sweet savor?

In 2 Corinthians 2:15-16, Paul states that we are unto God a sweet savor in them that are saved and in them that perish. This means that the gospel of Christ represents spiritual life to those who believe, bringing them joy and hope, while simultaneously being a savor of death to those who reject it. The dual nature of the gospel underscores its power; it is well-pleasing to God regardless of human response. The gospel's fragrance is appealing to those who are being saved, as it signifies the nourishing and sustaining life that God offers through faith in Jesus Christ.