'Be Merciful' in the Bible

Be merciful, O LORD, unto thy people Israel, whom thou hast redeemed, and lay not innocent blood unto thy people of Israel's charge. And the blood shall be forgiven them.

"And so the LORD will not be merciful unto him, but then the wrath of the LORD and his jealousy, smoke against that man, and all the curses that are written in this book light upon him, and the LORD do out his name from under heaven,

Rejoice, O ye nations, with his people: for he will avenge the blood of his servants, and will render vengeance to his adversaries, and will be merciful unto his land, and to his people.