'Lord Has Spoken' in the Bible

Who is the wise man that may understand this? And who is he to whom the mouth of the Lord has spoken, that he may declare it? Why is the land ruined, laid waste like a desert, so that no one passes through?

Listen and give heed, do not be haughty,For the Lord has spoken.

Why will you die, you and your people, by the sword, famine and pestilence, as the Lord has spoken to that nation which will not serve the king of Babylon?

The Lord has spoken to you, O remnant of Judah, “Do not go into Egypt!” You should clearly understand that today I have testified against you.