Behold, thou art called a Jew
From hence to the end of the chapter the Jews are particularly addressed; their several privileges and characters are commemorated, which by an ironical concession are allowed them; several charges are brought against them, even against their principal men; and the plea in favour of them, from their circumcision, is considered; and the apostle's view in the whole, is to show that they could not be justified before God by their obedience to the law of Moses: "behold"; take notice, observe it, this will be granted: "thou art called a Jew"; thou art one by name, by nation, and by religion; but no name, nor outward religion, nor a mere profession, will justify before God:
and restest in the law;
which may be understood of their having the law and the knowledge of it, what is to be done and avoided easily, without any fatigue and labour; of their pleasing and applauding themselves with the bare having and hearing of it; of their trust and confidence in it; and of their inactivity and security in it, as persons asleep; and so of their coming short of the knowledge of the Gospel, and of Christ the end of the law for righteousness, their whole confidence being placed in that: so the Targumist in ( Jeremiah 8:8 ) paraphrases the words,
``we are wise, "and in the law of the Lord", (Nwuyxr agxna) , do we trust;''and makest thy boast of God.