'Obeys' in the Bible

Therefore if the uncircumcised man obeys the righteous requirements of the law, will not his uncircumcision be regarded as circumcision?

although he is a Gentile by birth, if he scrupulously obeys the Law, shall he not sit in judgement upon you who, possessing, as you do, a written Law and circumcision, are yet a Law-breaker?

For Moses writes about the righteousness that comes from the Law as follows: "The person who obeys these things will find life by them."