How does the nature of man affect his ability to believe the gospel?

The Scripture consistently illustrates that man, in his natural state, is dead in trespasses and sins (Ephesians 2:1). As such, individuals are incapable of receiving spiritual truths without the regenerating work of the Holy Spirit. 1 Corinthians 2:14 stresses that 'the natural man receiveth not the things of the Spirit of God; for they are foolishness unto him.' In this context, the need for God's intervention is paramount; He must give life to the spiritually dead in order for them to believe. It is only through this divine act of regeneration that an individual is empowered to respond faithfully to the gospel.