How do we know that God's mercy is available to sinners?

The mercy of God is fully manifested in the New Testament through the sacrifice of Jesus Christ. It is through His death and resurrection that believers are offered reconciliation with God, providing them the opportunity to receive grace despite their sinful nature. The gospel reveals a God who, out of love and compassion, grants mercy to those who seek it, as seen in the parable of the publican who cried out for mercy. This assurance of mercy is a cornerstone of the sovereign grace theology, affirming that while we deserve judgment, God instead extends His grace to those He has chosen.