To whom he wills then he showeth mercy, etc. Here follows the conclusion of both parts; which can by no means be understood as being the language of any other but of the Apostle; for he immediately addresses an opponent, and adduces what might have been objected by an opposite party. There is therefore no doubt but that Paul, as we have already reminded you, speaks these things in his own person, namely, that God, according to his own will, favors with mercy them whom he pleases, and unsheathes the severity of his judgment against whomsoever it seemeth him good. That our mind may be satisfied with the difference which exists between the elect and the reprobate, and may not inquire for any cause higher than the divine will, his purpose was to convince us of this -- that it seems good to God to illuminate some that they may be saved, and to blind others that they may perish: for we ought particularly to notice these words, to whom he wills, and, whom he wills: beyond this he allows us not to proceed. But the word hardens, when applied to God in Scripture, means not only permission, (as some washy moderators would have it,) but also the operation of the wrath of God: for all those external things, which lead to the blinding of the reprobate, are the instruments of his wrath; and Satan himself, who works inwardly with great power, is so far his minister, that he acts not, but by his command. [1] Then that frivolous evasion, which the schoolmen have recourse to respecting foreknowledge, falls to the ground: for Paul teaches us, that the ruin of the wicked is not only foreseen by the Lord, but also ordained by his counsel and his will; and Solomon teaches as the same thing, -- that not only the destruction of the wicked is foreknown, but that the wicked themselves have been created for this very end -- that they may perish. (Proverbs 16:4.)

Footnotes

1 - Much has been unnecessarily written on this subject of hardening. Pharaoh is several times said to have hardened his own heart, and God is said also several times to have hardened him too. The Scripture in many instances makes no minute distinctions, for these may be easily gathered from the general tenor of its teaching. God is in his nature holy, and therefore hardening as his act cannot be sinful: and as he is holy, he hates sin and punishes it; and for this purpose he employs wicked men, and even Satan himself, as in the case of Ahab. As a punishment, he affords occasions and opportunities to the obstinate even to increase their sins, and thus in an indirect way hardens them in their rebellion and resistance to his will; and this was exactly the case with Pharaoh. This, as Calvin says, was the operation or working of his wrath. The history of Pharaoh is a sufficient explanation of what is said here. He was a cruel tyrant and oppressor; and God in his first message to Moses said, "I am sure that the king of Egypt will not let you go, no, not by a mighty hand." God might indeed have softened his heart and disposed him to allow them to depart: but it pleased him to act otherwise, and to manifest his power and his greatness in another way: so that "whom he wills, he favours, and whom he wills, he hardens;" and for reasons known only to himself. Reference is at the end of this section made to Proverbs 16:4. The creation mentioned can be understood in no other sense than the continued exercise of divine power in bringing into existence human beings in their present fallen state. But "creation" is not the word used, nor is the passage correctly rendered. It is not vr' nor sh, but phl; and it is not a verb but a substantive. Literally rendered the passage is the following -- Every work of Jehovah is for its (or, his) purpose, And even the wicked is for the day of calamity. The Rev. G. Holden is very indignant that this text has been applied to support the doctrine of reprobation. Be it, that it has been misapplied; yet the doctrine does not thereby fall to the ground. If Paul does not maintain it in this chapter and in other passages, we must hold that words have no meaning. The history of God's providence is an obvious confirmation of the same awful truth. -- Ed.

Therefore hath he mercy - This is a conclusion stated by the apostle as the result of all the argument.
Whom he will he hardeneth - This is not stated in what the Scripture said to Pharaoh, but is a conclusion to which the apostle had arrived, in view of the case of Pharaoh. The word "hardeneth" means only to harden in the manner specified in the case of Pharaoh. It does not mean to exert a positive influence, but to leave a sinner to his own course, and to place him in circumstances where the character will be more and more developed; see the note at John 12:40. It implies, however, an act of sovereignty on the part of God in thus leaving him to his chosen course, and in not putting forth that influence by which he could be saved from death. Why this is, the apostle does not state. We should, however, not dispute a fact everywhere prevalent; and should have sufficient confidence in God to believe that it is in accordance with infinite wisdom and rectitude.

Therefore hath he mercy on whom he will - This is the apostle's conclusion from the facts already laid down: that God, according to his own will and wisdom, in perfect righteousness, bestows mercy; that is to say, his blessings upon one part of mankind, (the Jews of old, and the Gentiles of the present time), while he suffers another part (the Egyptians of old, and the Jews of the present day) to go on in the abuse of his goodness and forbearance, hardening themselves in sin, till he brings upon them a most just and exemplary punishment, unless this be prevented by their deep repentance and general return to God through Jesus the promised, the real Messiah.

(15) Therefore hath he mercy on whom he (t) will [have mercy], and whom he will he hardeneth.
(15) A conclusion of the full answer to the first objection: therefore seeing that God does not save those whom he freely chose according to his good will and pleasure, but by justifying and sanctifying them by his grace, his counsels in saving them cannot seem unjust. And again, there is not injustice in the everlasting counsel of God, with regard to the destruction of those whom he lifts to destroy, because he hardens before he destroys: therefore the third answer for the maintenance of God's justice in the everlasting counsel of reprobation, consists in this word "hardening": which nonetheless he concealed in the former verse, because the history of Pharaoh was well known. But the force of the word is great, for hardening, which is set against "mercy", presupposes the same things that mercy did, that is, a voluntary corruption, in which the reprobate are hardened: and again, corruption presupposes a perfect state of creation. Moreover, this hardening also is voluntary, for God hardens in such a way, being offended with corruption, that he uses their own will whom he hardens, for the executing of that judgment. Then follow the fruits of hardening, that is, unbelief and sin, which are the true and proper causes of the condemnation of the reprobate. Why does he then appoint to destruction? Because he wishes: why does he harden? Because they are corrupt: why does he condemn? Because they are sinners. Where then is unrighteousness? Nay, if he would destroy all after this manner, to whom would he do injury?
(t) Whom it pleased him to appoint, to show his favour upon.

Therefore hath he mercy on whom he will,.... These are the express words of the former testimony: it follows,
and whom he will he hardeneth; which is the just and natural consequence of what is contained in the latter; for if God could, or he did, without any injustice, raise up Pharaoh, and harden his heart against him and his people, that he might rise up against him and destroy him by his power for his own glory, then he may harden any other person, and even whom he will: now this hardening of men's hearts may be understood in perfect agreement with the justice and holiness of God: men first harden their own hearts by sinning, as Pharaoh did; what God does, is by leaving them to the hardness of their hearts, denying them that grace which only can soften them, and which he is not obliged to give, and therefore does them no injustice in withholding it from them; by sending them both mercies and judgments, which through the corruption of their hearts, are the means of the greater hardening of them; so judgments in the case of Pharaoh, and mercies in the case of others; see Isaiah 6:10; by delivering them up into the hands of Satan, and to their own lusts, which they themselves approve of; and by giving them up to a judicial blindness and hardness of heart, as a just punishment for their impieties.

Therefore hath he--"So then he hath." The result then is that He hath
mercy on whom he will have mercy, and whom he will he hardeneth--by judicially abandoning them to the hardening influence of sin itself (Psalm 81:11-12; Romans 1:24, Romans 1:26, Romans 1:28; Hebrews 3:8, Hebrews 3:13), and of the surrounding incentives to it (Matthew 24:12; 1-Corinthians 15:38; 2-Thessalonians 2:17).
Second objection to the doctrine of Divine Sovereignty:

So then - That is, accordingly he does show mercy on his own terms, namely, on them that believe. And whom he willeth - Namely, them that believe not. He hardeneth - Leaves to the hardness of their hearts.