'That's' in the Bible

There is no reason why you and your people should die in war or from starvation or disease! That's what the Lord says will happen to any nation that will not be subject to the king of Babylon.

“That’s a lie,” Jeremiah replied. “I am not deserting to the Chaldeans!” Irijah would not listen to him but apprehended Jeremiah and took him to the officials.

How can it be quiet, when the LORD has ordered disaster to come to Ashkelon and the seashore? That's where he has assigned it."