1 Kings 9:25
And three times in a year did Solomon offer burnt offerings and peace offerings upon the altar which he built unto the LORD, and he burnt incense upon the altar that was before the LORD. So he finished the house. And three times in a year did Solomon offer burnt offerings and peace offerings upon the altar which he built unto the LORD, and he burnt incense upon the altar that was before the LORD. So he finished the house.
The verse belongs to the account of Solomon's reign in the undivided kingdom. It concerns the building and dedication of the temple, including its sacrifices and the divine answer to Solomon's prayer. It shows Solomon personally continuing to perform priestly duties by offering burnt offerings and peace offerings three times in a year on the altar he built to the Lord and burning incense on the altar before the Lord. The three yearly times were the great annual feasts, and the burning of incense included Sabbaths as well as feast days, showing the union of king and priest in Solomon.