"Amidst descriptions of the days preceding the Messiah, the Babylonian Talmud in the Tractate of Sanhedrin, 97a, explains the verse from Amos and its implications."
“As it is written, in that day I will raise up the tabernacle of David that is fallen. Our Rabbis taught: in the seven-year cycle at the end of which the son of David will come-in the first year, this verse will be fulfilled.” FULL STORY at above link.