'Law' in the Bible

Dare any of you, having a matter against his neighbor, go to law before the unrighteous, and not before the saints?

But brother goes to law with brother, and that before unbelievers!

A wife is bound by law for as long as her husband lives; but if the husband is dead, she is free to be married to whoever she desires, only in the Lord.

Do I speak these things according to the ways of men? Or doesn't the law also say the same thing?

For it is written in the law of Moses, "You shall not muzzle an ox while it treads out the grain." Is it for the oxen that God cares,

To the Jews I became as a Jew, that I might gain Jews; to those who are under the law, as under the law, that I might gain those who are under the law;

to those who are without law, as without law (not being without law toward God, but under law toward Christ), that I might win those who are without law.

In the law it is written, "By men of strange languages and by the lips of strangers I will speak to this people. Not even thus will they hear me, says the Lord."

let your wives keep silent in the assemblies, for it has not been permitted for them to speak; but let them be in subjection, as the law also says.

The sting of death is sin, and the power of sin is the law.