best of the oil

Numbers 18:29
You must present the offering due the LORD from all the best of every gift, the holiest part of it.

The first fruits

Numbers 15:19-21
and you eat the food of the land, you shall lift up an offering to the LORD. . . .

Exodus 22:29
You must not hold back offerings from your granaries or vats. You are to give Me the firstborn of your sons.

Exodus 23:19
Bring the best of the firstfruits of your soil into the house of the LORD your God. You must not cook a young goat in its mother's milk.

Exodus 34:26
Bring the best of the firstfruits of your soil to the house of the LORD your God. You shall not cook a young goat in its mother's milk."

Leviticus 2:14
If you bring a grain offering of firstfruits to the LORD, you shall offer crushed heads of new grain roasted on the fire.

Leviticus 23:17, 20
Bring two loaves of bread from your dwellings as a wave offering, each made from two-tenths an ephah of fine flour, baked with yeast, as the firstfruits to the LORD. . . .

Deuteronomy 18:4
You are to give them the firstfruits of your grain, new wine, and oil, and the first wool sheared from your flock.

Deuteronomy 26:2
you must take some of the firstfruits of all the produce of the ground that you bring in from the land the LORD your God is giving you and put them in a basket. Then go to the place that the LORD your God will choose as a dwelling for His name,

Nehemiah 10:35-37
We will also bring the firstfruits of our land and of every fruit tree to the house of the LORD year by year. . . .