How do we know that Christ's mercy is sufficient?

The sermon emphasizes that Christ's mercy transcends human boundaries and judgments as seen in the healing of the Canaanite woman's daughter. This account illustrates that Christ's mercy is not reserved for the elite or those who fit a particular mold but is extended to all who come to Him in faith, regardless of their past or social standing. The promise of Romans 10:13 confirms that everyone who calls on the name of the Lord will be saved, showcasing His readiness to meet our needs when we approach Him as the beggar in need of crumbs. This underlines the theme of sovereign grace, where God's mercy is the bedrock of our hope.