'Says the Lord' in the Bible

This is what the Lord says,“Though they are at full strength and many in number,Even so, they will be cut off and pass away.Though I have afflicted you and caused you grief [O Jerusalem],I will afflict you no longer.

“Behold, I am against you [Nineveh],” declares the Lord of hosts, “and I will burn your chariots in the smoke, and the sword will devour your young lions. I will cut off your prey from the land, and the voice of your messengers will no longer be heard.”

“Behold, I am against you,” declares the Lord of hosts,“And I will lift up your skirts over your face,And I will let the nations look at your nakedness [O Nineveh]And the kingdoms at your disgrace.