What does the Bible say about divine mercy?

In Scripture, divine mercy is a core aspect of God's character, demonstrated supremely through the narrative of Hosea and Gomer. God commands Hosea to marry Gomer, a woman of whoredoms, reflecting His unconditional love towards His people who turn away from Him. Despite Gomer's unfaithfulness, Hosea remains devoted, illustrating God's steadfast love and mercy for sinners. This loving commitment can be seen in God's promises, such as in Romans 9, where He states that He will call those who were not His people, 'My people,' showcasing His grace and mercy in redeeming those who have strayed.