1 Kings 8:2

8:2 All the men of Israel assembled before King Solomon during the festival in the month Ethanim (the seventh month).

1 Kings 18:44

18:44 The seventh time the servant said, “Look, a small cloud, the size of the palm of a man’s hand, is rising up from the sea.” Elijah then said, “Go and tell Ahab, ‘Hitch up the chariots and go down, so that the rain won’t overtake you.’”

1 Kings 20:29

20:29 The armies were deployed opposite each other for seven days. On the seventh day the battle began, and the Israelites killed 100,000 Syrian foot soldiers in one day.