'Under the Law' in the Bible

But before faith came, we were kept shut up under the law, till the faith appeared which was to be revealed.

but when the fulness of the time came, God sent forth his Son born of a woman made under the law,

that He might redeem those that were under the law, that we might receive the adoption of sons.

Tell me, you that are so desirous to be under the law, do ye not hear the law?

But if ye be led by the Spirit, ye are not under the law.