How do we know grace is essential for salvation?

The teaching of grace as essential for salvation is rooted in Ephesians 2:8-9, which emphasizes that it is by grace we are saved through faith, not of works. The contrast between the rich man and Lazarus illustrates this truth vividly: the rich man, despite his earthly riches, lacked grace and thus found himself in torment after death, while Lazarus, though poor, was rich in grace and welcomed into paradise. This exemplifies that one's material wealth or status does not equate to acceptance with God, but rather, grace is a gift from God that enables individuals to partake in salvation regardless of their life circumstances. Grace transforms the believer's reality, making them heirs of salvation.