Numbers 7:87-88

87All the oxen for the burnt offering totaled twelve bulls, all the rams, twelve, the male lambs one year old with their grain offering, twelve, and the male goats as a sin offering, twelve; 88and all the oxen for the sacrifice of peace offerings totaled twenty-four bulls, all the rams, sixty, the male goats, sixty, and the male lambs one year old, sixty. 1This was the dedication offering for the altar after it was anointed.