Offer it as an aroma pleasing to the Lord.

Numbers 15:1-29
whether burnt offerings or sacrifices, for special vows or freewill offerings or festival offerings— then the person who brings an offering shall present to the Lord a grain offering of a tenth of an ephah of the finest flour mixed with a quarter of a hin of olive oil. With each lamb for the burnt offering or the sacrifice, prepare a quarter of a hin of wine as a drink offering. Offer it as an aroma pleasing to the Lord.
Same as prepare a ram, a young bull.
Everyone who is native-born must do these things in this way when they present a food offering as an aroma pleasing to the Lord.
Throughout the generations to come you are to give this offering to the Lord from the first of your ground meal.
One and the same law applies to everyone who sins unintentionally, whether a native-born Israelite or a foreigner residing among you.
The first verse of this chapter stands in total contrast to what has just passed. The instructions that follow are for ‘when you enter the land’. It may be delayed, but it will surely happen!
Verse 1-31 : offerings to be made after the conquest of Canaan.
Why?
God has define the law to his people how to make grain offering when they enter the promised land. Key point is the first archivement from the land are belong to the Lord.
Even the wine could be drink offering and offer it as an aroma pleasing to the Lord.
The willing heart is important than offering.
How?
Honor the name of the Lord with all my heart and all my soul and my strength.