How does God's mercy relate to salvation?

In his sermon, the preacher expounds on the theme of sovereign mercy, emphasizing that God shows mercy to whom He will. This aligns with Ephesians 2:4-5, which states that, 'But God, being rich in mercy, because of the great love with which He loved us, even when we were dead in our trespasses, made us alive together with Christ.' This underscores that salvation is not based on our merit but solely on God's grace. The Lord delights to show mercy, as evident in His actions throughout biblical history, and this mercy leads to the calling and redemption of His people.