On the second day

to gain insight from

The abstract noun "insight" can be expressed as a verb. AT: "to understand" (See: rc://en/ta/man/translate/figs-abstractnouns)

These were temporary shelters that people made out of branches and leaves.

"month 7." This is the seventh month of the Hebrew calendar. It is during the last part of September and the first part of October on Western calendars. (See: rc://en/ta/man/translate/translate-ordinal and rc://en/ta/man/translate/translate-hebrewmonths)

"They should announce"

a kind of small tree with colorful flowers (See: rc://en/ta/man/translate/translate-unknown)

"leafy trees"

This can be translated in active form. AT: "as Moses wrote about it" (See: rc://en/ta/man/translate/figs-activepassive)