How do we know that God's grace is unchanging?

The unchanging nature of God's grace is grounded in the immutability of God. As stated in Hebrews 13:8, 'Jesus Christ is the same yesterday, today, and forever.' This emphasizes that God's character does not fluctuate with time or culture. God's grace remains constant because it is rooted in His nature, not in human circumstances or behaviors. The consistent message of grace throughout Scripture—from God’s interaction with Adam and Eve post-fall to Christ's redemptive work on the cross—demonstrates that while humanity may be subject to change, God's mercy and grace endure eternally. Therefore, believers can find assurance in the unchanging kindness of God towards sinners.