Numbers 7:3-5

American Standard Version

³ and they brought their oblation before Jehovah, six covered wagons, and twelve oxen; a wagon for every two of the princes, and for each one an ox: and they presented them before the tabernacle. ⁴ And Jehovah spake unto Moses, saying, ⁵ Take it of them, that they may be used in doing the service of the tent of meeting; and thou shalt give them unto the Levites, to every man according to his service.