Abel then presented his person and offering, as shrouding both, by faith, under the righteousness of Christ, which lay wrapped up in the promise; but Cain stands upon his own legs, and so presents his offering. Abel therefore is accepted, both his person and his offering, while Cain remains accursed.
Ver. 5. "But unto Cain, and to his offering, he [the Lord] had not respect. And Cain was very wroth, and his countenance fell."
Mark: As first Abel's person is accepted, and then his offering; so first Cain's person is rejected, and afterwards his offering: For God seeth not sin in his own institutions, unless they be defiled by them that worship him; and that they needs must, when persons by[18] themselves offer sacrifice to God, because then they want the righteousness of faith.
This then made the difference betwixt Abel and his brother; Abel had faith, but Cain had none. Abel's faith covered him with Jesus Christ, therefore he stood righteous in his person before God: This being so, his offering was accepted, because it was the offering of one that was righteous.
"But unto Cain, and to his offering, the Lord had not respect." Hence note, That a Christless man is a wicked man, let him be never so full of actions that be righteous; for righteous actions make not a righteous man, the man himself must first be righteous.[19]
Wherefore, though Cain was the eldest, and first in the worship; yet Abel was the wisest, and the most acceptable therein.
"And Cain was very wroth, and his countenance fell." From these words it may be gathered, that Cain had some evident token from the observation of God's carriage towards both himself and brother; that his brother was smiled upon, but he rejected: He was wroth: wroth with God, and wroth with his brother. And indeed, before the world hate us, they must needs hate Jesus Christ: "It hated me [saith he] before it hated you" (John 15:18). He was wroth: and why? Wroth because his sacrifice was not accepted of God: And yet the fault was not in the Lord, but Cain: He came not before the Lord, as already made righteous with the righteousness of Christ, which indeed had been doing well, but as a cursed wicked wretch, he thought that by his own good works he must be just before the Lord.
The difference therefore that was between these worshippers, it lay not in that they worshipped divers gods, but in that they worshipped the same God after a diverse manner: The one in faith, the other without; the one as righteous, the other as wicked.
And even thus it is between us and our adversaries: We worship not divers gods, but the same God in a diverse manner: We according to faith; and they according to their OWN INVENTIONS.[20]
"And Cain was wroth." This further shows us the force of the law, and the end of those that would be just by the same; namely, That in conclusion they will quarrel with God; for when the soul in its best performances, and acts of righteousness, shall yet be rejected and cast off by God, it will fret and wrangle, and in its spirit let fly against God. For thus it judgeth, That God is austere and exacting; it hath done what it could to please him, and he is not pleased therewith. This again offendeth God, and makes his justice curse and condemn the soul. Condemn it, I say, for imagining that the righteousness of a poor, sinful, wretched creature, should be sufficient to appease eternal justice for sin. Thus the law worketh wrath, because it always bindeth our transgression to us, and still reckoneth us sinners, and accursed, when we have done our utmost to answer and fulfil it (Rom 4:15).