“Five people are describing the same event. One says ‘I was aware of a blur of colour and a sudden loud noise.’ The next says ‘I saw and heard a vehicle driving noisily down the road.’ The next says ‘I saw an ambulance on its way to the hospital.’ The fourth says ‘I have just witnessed a tragedy.’ The fifth says ‘This is the end of the world for me.’ The same event gives rise to five true statements, with each successive one having more ‘meaning’ than the one before.” (The New Testament and the People of God, 282-83).
Right there, my friends, is why the Old Testament and the New Testament are speaking about exactly the same thing; namely, the death and resurrection of Jesus with all its implications. Jeremiah and Peter had different vantage points on the same event.
Failure to get this has led, outside the church, to endless writing on the “contradictions” in Scripture; inside the church, it led to old-school dispensationalism. Oh bother.