[During this time], while Annas and Caiaphas [Note: This man was Annas' son-in-law. See John 18:13] were head priests, God's message came to John [the Immerser], son of Zacharias, [when he was] in the desert [of Judea].

And a father will be divided against his son and the son against his father; a mother [will be divided] against her daughter and the daughter against her mother; a mother-in-law [will be divided] against her daughter-in-law and a daughter-in-law against her mother-in-law."

For it is written in the law about Abraham's two sons [Gen. 16]; one [was] by his slave woman [Hagar] and the other by the free woman, [his wife, Sarah].

For the law of Moses appoints [morally] weak men to be head priests, but the message of [God's] oath, which came after that law [Note: The quotation from Psa. 110:4 (See verse 21) was written after the law of Moses was given] appointed the Son, who was made perfect [in every way] forever.

This is because no human being can be considered right with God by [obeying] the requirements of a law. [Note: It is difficult to determine the exact sense in which "law" is used in these verses. It may be law generally, or the law of Moses specifically. See Bruce, pages 52-58]. For the knowledge of what sin is comes from the law of Moses.

For all those people [i.e., Gentiles] who have sinned without [knowing] the law of Moses will also be lost without [knowing] that law. And all those people [i.e., Jews] who have sinned under [the authority] of the law of Moses will be judged by [the requirements of] that law.

Or, do you not know, brothers, (I am talking to people who know how law works) that the law has authority over a person only as long as he lives? [Note: It is not clear whether this refers to Roman law or the law of Moses].

I [also] behaved like a person without [obligation to observe] the law [i.e., a Gentile] in front of those who are not obligated to it, although I was not [really] without obligation to God's law; but was under [obligation to] Christ's law. I did this to win those who are without [obligation to observe] the law [i.e., Gentiles].

But, just as it was then --- the son born in the ordinary way [i.e., Ishmael] persecuting the one born according to the Holy Spirit's [leading, i.e., Isaac] --- so it is now [i.e., Jews urging compliance with the requirements of the law of Moses persecuting those who refuse to return to dependance on that law for salvation. See 3:1-3].

Now the practice of circumcision [i.e., the Jewish rite of identity, signifying the responsibility to observe the law of Moses] is worthwhile, providing you obey [the rest of] the law of Moses. But if you disobey the law, you might as well have never been circumcised.

Now we [all] know that everything the law says applies to those who are under [obligation to obey] that law, [Note: Here "the law" appears to refer to the Old Testament Scriptures generally, since Psalms and Isaiah are quoted. See verses 10-18]. This is so that the mouth of every objector may be stopped [i.e., from making excuses for his sin], and thereby bring the entire world under God's judgment [i.e., both Jews and Gentiles].

What shall we say then? Is the law of Moses sinful? Certainly not! For I would not have known what sin was if it had not been for the law. For [example]; I would not have known [what it meant] to covet [i.e., have a strong desire for what belongs to someone else] except that the law said [Ex. 20:17], "You must not covet."

but I see a different law [at work] in my body, waging [spiritual] warfare against the law in my mind. It brings me into captivity to the law of sin in my body.

I behaved like a Jew in front of the Jews in order to win Jews [to Christ]. I behaved like a person who was under [obligation to observe] the law [i.e., Jews] in front of those who observe that law, although I was not [really] under [obligation to] it. I did this to win those who are under [obligation to observe] the law.

still we know that a person is not justified [i.e., made right with God] by [perfect obedience to] the law of Moses, but rather through faith in [the person and work of] Christ. [Knowing this] we have trusted in Christ Jesus [to save us], so that we might be made right with God by trusting in Him and not by [our compliance with] the requirements of the law of Moses. Because by such law-compliance no one can be made right with God.

Is the law of Moses contrary to the promises of God? Certainly not! For if there had been a law given which could provide [never ending] life, then a person could be considered right with God by [obeying the requirements of such] a law.