Bilangan 15:4

15:4 then the one who presents his offering to the Lord must bring ¹  a grain offering of one-tenth of an ephah of finely ground flour mixed with one fourth of a hin of olive oil. ² 

[15:4]  ¹ tn The three words at the beginning of this verse are all etymologically related: “the one who offers his offering shall offer.”

[15:4]  ² sn Obviously, as the wording of the text affirms, this kind of offering would be made after they were in the land and able to produce the grain and oil for the sacrifices. The instructions anticipated their ability to do this, and this would give hope to them. The amounts are difficult to determine, but it may be that they were to bring 4.5 liters of flour and 1.8 liters each of oil and wine.