Ezekiel 43:22-24

The next day Ezekiel was to offer a ram that was free of blemishes as a sin offering. This also was part of the seven-day ritual necessary to cleanse the altar. Then he should present another bull and another ram, equally blemish free, in the inner court. The priest was to throw salt on them, slay them, and offer them as burnt offerings. Salt was an agent of purification and preservation that was often used symbolically (cf. Leviticus 2:13; Numbers 18:19; 2 Chronicles 13:5; Mark 9:49).