Here "heads" is a metaphor for the most important part of something. AT: "all the leaders of the tribes" (See: [[rc://en/ta/man/translate/figs-metaphor]])
# All the men of Israel
This may refer either 1) to the people whom Solomon called to Jerusalem and who are listed in 5:2 or 2) generally to those who traveled to Jerusalem for the feast, not necessarily to every male person who lived in Israel. (See: [[rc://en/ta/man/translate/figs-hyperbole]])
This is the Festival of Shelters which is on the fifteenth day of the seventh month of the Hebrew calendar. This is near the beginning of October on Western calendars. (See: [[rc://en/ta/man/translate/translate-hebrewmonths]] and [[rc://en/ta/man/translate/translate-ordinal]] and [[rc://en/ta/man/translate/figs-explicit]])