'Law' in the Bible

Do I speak these things as a man, or does not the law also say these things?

For in the law of Moses it is written, Thou shalt not muzzle the ox that is treading out corn. Is God occupied about the oxen,

And I became to the Jews as a Jew, in order that I might gain the Jews: to those under law, as under law, not being myself under law, in order that I might gain those under law:

to those without law, as without law, (not as without law to God, but as legitimately subject to Christ,) in order that I might gain those without law.

It is written in the law, By people of other tongues, and by strange lips, will I speak to this people; and neither thus will they hear me, saith the Lord.

Let your women be silent in the assemblies, for it is not permitted to them to speak; but to be in subjection, as the law also says.

Now the sting of death is sin, and the power of sin the law;