threescore and ten years
Zechariah 1:12
1:12 threescore and ten years. The seventy years of prophesied exile had passed, and the Jewish remnant had come back home, but they still had not rebuilt the temple, as they had been commissioned to do. These visions given to Zechariah are intended to empower him (along with Haggai, whose testimony must soon end) to encourage and constrain them to complete it.