'Principle' in the Bible

You must not show pity; the principle will be a life for a life, an eye for an eye, a tooth for a tooth, a hand for a hand, and a foot for a foot.

And lots were also cast [for] these, just as their brothers, the sons of Aaron, before David the king, Zadok, Ahimelech, and the heads of the {families} for the priests and for the Levites the fathers, {on the principle of the chief and younger brother alike}.

And they cast lots [for] responsibilities {on the principle of small and great alike}, teacher with student.

God has declared one principle; two principles I have heard: God is strong,

To obey the Lord is the fundamental principle for wise living; all who carry out his precepts acquire good moral insight. He will receive praise forever.

But whoever commits adultery with a woman lacks common sense and sound judgment and an understanding [of moral principles];He who would destroy his soul does it.

The Lord of hosts has planned it, to defile the pride of all beauty,To bring into contempt and humiliation all the honored of the earth.