Numbers 7:88-89

and all the oxen for the sacrifice of peace-offerings twenty and four bullocks, the rams sixty, the he-goats sixty, the he-lambs a year old sixty. This was the dedication of the altar, after that it was anointed. And when Moses went into the tent of meeting to speak with him, then he heard the Voice speaking unto him from above the mercy-seat that was upon the ark of the testimony, from between the two cherubim: and he spake unto him.