“‘If his offering is a votive or freewill sacrifice, ¹  it may be eaten on the day he presents his sacrifice, and also the leftovers from it may be eaten on the next day, ² 

So Eleazar the priest took the bronze censers presented by those who had been burned up, and they were hammered out as a covering for the altar.

But Aaron spoke to Moses, “See here! ¹  Just today they presented their sin offering and their burnt offering before the Lord and such things as these have happened to me! If I had eaten a sin offering today would the Lord have been pleased?” ² 

The exiles who were returning from the captivity offered burnt offerings to the God of Israel – twelve bulls for all Israel, ninety-six rams, seventy-seven male lambs, along with twelve male goats as a sin offering. All this was a burnt offering to the Lord.