'Have Mercy' in the Bible

Thus the LORD shall smite Egypt, and heal it again: and so shall they turn to the LORD, and he also shall have mercy upon them, and save them.

Yet standeth the LORD waiting, that he may have mercy upon you, and lifteth himself up, that he may receive you to grace. For the LORD God is righteous. Happy are all they that wait for him.

For thus, O thou people of Zion and ye citizens of Jerusalem, shall ye never be in heaviness; for doubtless he will have mercy upon thee. As soon as he heareth the voice of thy cry, he will help thee.

Rejoice ye heavens, and sing praises thou earth: Talk of joy ye hills, for God will comfort his people, and have mercy upon his, that be in trouble.