25 And Adam knew his wife again, and she bore a son and named him Seth, “For God has appointed another seed for me instead of Abel, whom Cain killed.”
26 And as for Seth, to him also a son was born; and he named him Enosh. Then men began to call on the name of the Lord.
The name Seth means “appointed” or “substituted,” and indicates that Eve had faith that it was through this son that God’s promises would eventually be fulfilled. … In the days of [Enosh] (meaning “mortal frailty,” an implicit testimony to Seth’s awareness of man’s deep spiritual need), the son of Seth, it is recorded that “men began to call upon the name of Jehovah.” — Morris, page 149.
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As sons continue to be born to man and the population of mankind consequently increases, so too does the presence, realization, and aftermath of depravity, with the result that the name of the Lord (a synecdoche for the Lord Himself) in increasingly invoked. The purpose of this invoking or “calling upon” the name of the Lord would therefore be to seek His aid in deliverance from death or distress, as is consistent with this expression elsewhere in Scripture (cf. 2 Kings 5:11; Psalm 116:4; Joel 3:5)—including as well the complementary idea of invoking the name of the Lord as an act of worship in response to His acts of deliverance and sovereign self-revelation (cf. 1 Kings 18:39; Psalm 105:1; Zephaniah 3:9). The use of this expression thus adeptly serves to bring this section to thematic-theological closure, implying not only the increasing depravity of man—consistent with the overall theme of 1:1–11:26—but also, on the positive side, God’s continuing solicitude for the welfare of man and His increasing glorification via the worshipful response of those who receive and recognize His solicitude. — Wechsler, page 126.
20 And Adam called his wife’s name Eve, because she was the mother of all living.
21 Also for Adam and his wife the Lord God made tunics of skin, and clothed them.
Adam called his wife’s name Eve (meaning “life”) because she was the “mother of all living.” He thus indicated his faith in God’s promises, not only that they would have children but also that through this means God would send the “seed of the woman” to bring salvation. … In spite of their condemnation unto death, God promised they would indeed live long enough at least to have their children and raise them. They believed God’s word and so were saved. — Morris, page 129.
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The robe which God provided was an effectual covering, because He provided it; just as the apron was an ineffectual covering, because man had provided it. Moreover, God’s coat was founded upon blood-shedding; Adam’s apron was not. So also now, God’s righteousness is set forth in the cross; mans’ righteousness is set forth in the works—the sin-stained works—of his own hands. … the sinner may feel perfectly at rest when, by faith, he knows that God has clothed him; but to feel at rest till them, can only be the result of presumption or ignorance. — Mackintosh, pages 54-55.
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[God] took away their coverings of fig leaves, and clothed them with coats of skins. Most significant was the action: for by it He testified that their shame was not groundless, that there was need of a covering, but that the best the sinners could make for themselves was of no avail. … They must learn that only by life can life be redeemed; that if the sinner die not, there must be a Substitute; that the Most High is holiness and justice as well as love, and can by no means clear the guilty. — Pember, pages 158-159. (He proposes that it was at this point that God initiated animal sacrifice.)