Thanks for clarifying the premise statement, I can see what you are trying to say. You list the three scriptures that are used to support the conclusion that you have at the end of the three scriptures.
I still don't get the explanation of Jeremiah 25:12 though.
You said:
Jeremiah 25:11 mentions the servitude of 70 years. Verse 12 mentions that he will be called into account after the 70 years. Jeremiah 51 which is a continuation of what was described in verses 12-18, qualify that the calling into account involved the returning of the temple utensils. Simple enough?
You explanation is not "simple enough" and I still don't understand. Where in Jeremiah 51 does it equate the calling into account of the king to the returning of the temple utensils. Please show me the scripture that states that after 70 years is completed the utensils will be brought back to Jerusalem.
You stated in your response of premise 2 that vengence for the temple is the link. When was the vengence executed? When the king of Babylon was overthrown or when the utensils was returned? If it's when the utensils are returned the how do you explain Jeremiah 28:3?
Within two full years more I am bringing back to this place all the utensils of the house of Jehovah that Nebuchadnezzar the king of Babylon took from this place that he might bring them to Babylon.
It seems to me that this scripture states that the utensils will only be returned after an additional two years after the 70 years as verse 2 mentioned the yoke that the king of Babylon had being broken (this is when the 70 years ends according to Jer 25:12) and then it mentions an additional two years before the utensils will be returned.