'Offer' in the Bible

Jehoiada also placed the offices of the LORD's Temple under the authority of the Levitical priests whom David had assigned over the LORD's Temple, just as is required by the Law of Moses, to offer the LORD's burnt offerings with joy and singing, just as David had ordered.

Hezekiah gave a command to offer burnt offerings on the altar, and when the burnt offerings began, a song to the LORD also began with trumpets sounding and with the instruments that King David of Israel had crafted.

That's how the LORD's service was prepared that day to celebrate the Passover and to offer burnt offerings on the LORD's altar according to what King Josiah had commanded.