Leviticus 2:1-3, 13 (NIV)

2 “‘When anyone brings a grain offering to the Lord, their offering is to be of the finest flour. They are to pour olive oil on it, put incense on it 2 and take it to Aaron’s sons the priests. The priest shall take a handful of the flour and oil, together with all the incense, and burn this as a memorial[a] portion on the altar, a food offering, an aroma pleasing to the Lord. 3 The rest of the grain offering belongs to Aaron and his sons; it is a most holy part of the food offerings presented to the Lord.

13 Season all your grain offerings with salt. Do not leave the salt of the covenant of your God out of your grain offerings; add salt to all your offerings.