JEREMIAH AND HIS MISSION.

The prophet Jeremiah warned God's people of the catastrophe that was to fall upon the nation of Israel because of their idolatry and sin. In Revelation 10, this catastrophe is mentioned in this way:
"Then I saw another mighty angel coming down out of heaven. He was wrapped in a cloud and had a rainbow around his head, his face was like the sun, and his legs were like columns of fire." (1)
"He had a small scroll open in his hand. He put his right foot on the sea and his left foot on the land, and called out in a loud voice that sounded like a roar of lions." (2-3)
"After he had called out, the 7 Thunders answered with a roar. As soon as they spoke, I was about to write. But I heard a voice speak from heaven, 'Keep secret what the 7 Thunders have said; do not write it down!" (4)
"Then the angel that I saw standing on the sea and on the land raised his right hand to heaven and took a vow in the Name of God, who lives forever and ever, Who created heaven, earth, and the sea, and everything in them." (5-6)
"The angel said: 'There will be no more delay! But when the 7th angel blows his trumpet, then God will accomplish His Secret Plan, as He announced to His servants, the prophets." (7)
The catastrophe that was to fall upon the nation came true with the Fall of Jerusalem, the destruction of the city and the Temple and the exile of many of its people, including its king.
Jeremiah was a very sensitive man who deeply loved the nation of Israel, and who hated to have to pronounce judgment upon them.
Revelation 11 says: "I was given a stick that looked like a measuring rod, and was told, 'Go and measure the Temple of God and the altar, and count those who are worshiping in the Temple. But do not measure the outer courts, because they have been given to the heathen, who will trample on the Holy City for 42 months. I will send my 2 Witnesses dressed in sackcloth, and they will proclaim God's message during those 1,260 days (30 days each month)."  (Revelation 11: 1-3)
The Lord spoke to Jeremiah in this way: "I chose you before I gave you life, and before you were born I selected you to be a prophet to the nations."  (Jeremiah 1: 4-5)
Jeremiah answered: "Sovereign Lord, I do not know how to speak; I am too young."
But the Lord said to Jeremiah: "Do not say that you are too young, but go to the people I send you to, and tell them everything I command you to say. Do not be afraid of them, for I will be with you to protect you. I, the Lord, have spoken!"   (Jeremiah 1: 6-8)
Then the Lord reached out, touched Jeremiah's lips and said to him: "Listen, I am giving you the Words you must speak. Today I give you authority over nations and kingdoms to uproot and to pull down, to destroy and to overthrow, to build and to plant."   (Jeremiah 1: 9-10)
Revelation 11 continue to describe the nature of the 2 Witnesses sent by God to warn His people:
"The 2 Witnesses are the 2 Olive Trees and the 2 Lamps that stand before the Lord of the Earth. If anyone tries to harm them, fire comes out of their mouths and destroys their enemies; and in this way whoever tries to harm them will be killed. They have authority also over the Springs of Water, to turn them into blood; they have authority also to strike the earth with every kind of plague as often as they wish."  (Revelation 11: 4-6)
"When they finish proclaiming their message, the Beast that comes up out of the Abyss will fight against them. The Beast will defeat them and kill them, and their bodies will lie in the street of the Great City, where their Lord was crucified. The symbolic name of that city is Sodom, or Egypt. People from all nations, tribes, languages, and races will look at their bodies for 3 1/2 days and will not allow them to be buried."   (Revelation 11: 7-9)
"The people of the earth will be happy because of the death of these 2 Witnesses. They will celebrate and send presents to each other, because those 2 prophets brought much suffering upon the whole human race."   (Revelation 11: 10)
"After 3 1/2 days a life-giving breath came from God and entered into the 2 prophets, and they stood up and all who saw them were terrified."   (Revelation 11: 11)
"Then the 2 prophets heard a loud voice from heaven saying to them: 'Come up here!' As their enemies watched, they went up into heaven in a cloud. At that very moment there was a violent earthquake; a 10th of the City was destroyed, and 7,000 people were killed. The rest of the people were terrified and praised the greatness of the God of Heaven."
In many passages of his book, Jeremiah's speak with deep emotion about the things he is suppose to suffer because of the God's calling to him to be His prophet. The Word of the Lord was like Fire in his heart - he could not keep it back.
Jeremiah message points out the New Covenant that God's people would keep without a teacher to remind them, because it would be written on their hearts.