'First' in the Bible

Why do ye kick at My sacrifice, and at Mine offering which I commanded in My habitation, and dost honour thy sons above Me, to make yourselves fat from the first part of every offering of Israel, of My people?

And the first smiting which Jonathan and the bearer of his weapons have smitten is of about twenty men, in about half a furrow of a yoke of a field,

and the people taketh of the spoil of the flock and herd, the first part of the devoted thing, for sacrifice to Jehovah thy God in Gilgal.'

And he turneth round from him unto another, and saith according to this word, and the people return him word as the first word.