This is an idiom. AT: "they were very afraid" (See: [[rc://en/ta/man/translate/figs-idiom]])
# because of the people of the land
You may need to make explicit what it was about the people of the land that made the Jews afraid. AT: "because they thought the people of the land wanted to attack them" (See: [[rc://en/ta/man/translate/figs-explicit]])
# They offered burnt offerings to Yahweh at dawn and evening
One of the first things the people did was to begin offering sacrifices. This was before the temple was rebuilt.
# the Festival of Shelters
This is a festival that was celebrated for eight days during the seventh month of the Hebrew calendar. It was associated with the time of the exodus when the Israelites lived in tents. (See: [[rc://en/ta/man/translate/figs-explicit]])