'Keep the Law' in the Bible

Only, Jehovah give to thee wisdom and understanding, and charge thee concerning Israel, even to keep the law of Jehovah thy God;

and there rose up certain of those of the sect of the Pharisees who believed, saying -- 'It behoveth to circumcise them, to command them also to keep the law of Moses.'

seeing we have heard that certain having gone forth from us did trouble you with words, subverting your souls, saying to be circumcised and to keep the law, to whom we did give no charge,

for neither do those circumcised themselves keep the law, but they wish you to be circumcised, that in your flesh they may glory.