Romans 5:20

“Moreover, the law entered, etc..] By “the law” is meant, not the law of nature, much less the law of sin; rather the ceremonial law, which came in over and above the moral law; it entered but for a time; by which sin abounded, and appeared very sinful; and through it the grace of God much more abounded, in the sacrifice of Christ prefigured by it: but the moral law, as it came by Moses, is here intended; which entered with great pomp and solemnity on Mount Sinai; and intervened, or came between Adam's sin and Christ's sacrifice; and also came in besides, or over and above the promise of life by Christ; and may moreover be said to enter into the conscience of a sinner, with the power and…”

“Moreover the law--"The law, however." The Jew might say, If the whole purposes of God towards men center in Adam and Christ, where does "the law" come in, and what was the use of it? Answer: It entered--But the word expresses an important idea besides "entering." It signifies, "entered incidentally," or "parenthetically." (In Gal 2:4 the same word is rendered, "came in privily.") The meaning is, that the promulgation of the law at Sinai was no primary or essential feature of the divine plan, but it was "added" (Gal 3:19) for a subordinate purpose--the more fully to reveal the evil occasioned by Adam, and the need and glory of the remedy by Christ. that the offence might abound--or, "be…”

“Moreover - But. What is said in this verse and the following, seems designed to meet the Jew, who might pretend that the Law of Moses was intended to meet the evils of sin introduced by Adam, and therefore that the scheme defended by the apostle was unnecessary. He therefore shows them that the effect of the Law of Moses was to increase rather than to diminish the sins which had been introduced into the world. And if such was the fact, it could not be pled that it was adapted to overcome the acknowledged evils of the apostasy. The law - The Mosaic laws and institutions. The word seems to be used here to denote all the laws which were given in the Old Testament. Entered - This word usually…”

“The law came in between - The offence and the free gift. That the offence might abound - That is, the consequence (not the design) of the law's coming in was, not the taking away of sin, but the increase of it. Yet where sin abounded, grace did much more abound - Not only in the remission of that sin which Adam brought on us, but of all our own; not only in remission of sins, but infusion of holiness; not only in deliverance from death, but admission to everlasting life, a far more noble and excellent life than that which we lost by Adam's fall. Romans 5:21”

“5:20 Many Jews believed that the giving of the law to Israel reversed or mitigated the negative effects of Adam’s sin, but Paul says that God’s law magnified and illuminated their sins.”

“the law: Rom 3:19, Rom 3:20, Rom 4:15, Rom 6:14, Rom 7:5-13; Joh 15:22; Co2 3:7-9; Gal 3:19-25 But: Rom 6:1; Ch2 33:9-13; Psa 25:11; Isa 1:18, Isa 43:24, Isa 43:25; Jer 3:8-14; Eze 16:52, Eze 16:60-63, Eze 36:25-32; Mic 7:18, Mic 7:19; Mat 9:13; Luk 7:47, Luk 23:39-43; Joh 10:10; Co1 6:9-11; Eph 1:6-8, Eph 2:1-5; Ti1 1:13-16; Tit 3:3-7 Romans 5:21”