'Lord' in the Bible

Lord Jehovah, thou hast begun to shew thy servant thy greatness, and thy powerful hand; for what God is in the heavens or in the earth that can do like to thy works, and like to thy might?

I prayed therefore to Jehovah, and said, Lord Jehovah, destroy not thy people and thine inheritance, which thou hast redeemed through thy greatness, which thou hast brought forth out of Egypt with a powerful hand.

For Jehovah your God is the God of gods, and the Lord of lords, the great God, the mighty and the terrible, who regardeth not persons, nor taketh reward;