Numbers 7:87-89

Young's Literal Translation

⁸⁷ all the oxen for burnt-offering [are] twelve bullocks, rams twelve, lambs, sons of a year twelve, and their present; and kids of the goats twelve, for sin-offering;

⁸⁸ and all the oxen for the sacrifice of the peace-offerings [are] twenty and four bullocks, rams sixty, he-goats sixty, lambs, sons of a year, sixty; this is the dedication of the altar, in the day of its being anointed.

⁸⁹ And in the going in of Moses unto the tent of meeting to speak with Him -- he doth even hear the voice speaking unto him from off the mercy-seat which [is] upon the ark of the testimony, from between the two cherubs; and He speaketh unto him.