Promises, Promises: Leaving the Wilderness. The New Testament disciples lived in a period of transition from old to new. It was the end of this they were looking forward to.
The Prophet Motive: The ones who killed the prophets (Revelation 16, 18) were specifically targeted by God in His vengeance.
Seeing the Light of Day: The Christians of the Bible were living in the night, awaiting the dawn of Jesus' appearance. This was to be imminent in its arrival.
Malachi: Old Testament prophet's perspective - Salvation and judgement occurred at the one time, heralded by John the baptist.