Great & Terrible Day of the Lord: When is the "great and terrible day of the Lord" and what is the curse? How does Elijah and John the Baptist fit in? [Malachi 3:1, 4:1,5-6, 16-17, Deuteronomy 28:15f, Matthew 3, Luke 3, Joel 2:28, Peter, Isaiah 40, Matthew 11:4].