Leviticus 2:11-13

11‘No grain offering that you bring to the Lord shall be made with leaven, for you shall not offer up in smoke any leaven [which symbolizes the spread of sin] or any honey [which, like leaven, is subject to fermentation] in any offering by fire to the Lord.

12As an offering of first fruits you may offer them [leaven and honey] to the Lord, but they shall not go up [in smoke] on the altar as a sweet and soothing aroma.

13You shall season every grain offering with salt so that the salt (preservation) of the covenant of your God will not be missing from your grain offering. You shall offer salt with all your offerings.