9:14-24 Whatever God does, must be just. Wherein the holy, happy people of God differ from others, God's grace alone makes them differ. In this preventing, effectual, distinguishing grace, he acts as a benefactor, whose grace is his own. None have deserved it; so that those who are saved, must thank God only; and those who perish, must blame themselves only, Hos 13:9. God is bound no further than he has been pleased to bind himself by his own covenant and promise, which is his revealed will. And this is, that he will receive, and not cast out, those that come to Christ; but the drawing of souls in order to that coming, is an anticipating, distinguishing favour to whom he will. Why does he yet find fault? This is not an objection to be made by the creature against his Creator, by man against God. The truth, as it is in Jesus, abases man as nothing, as less than nothing, and advances God as sovereign Lord of all. Who art thou that art so foolish, so feeble, so unable to judge the Divine counsels? It becomes us to submit to him, not to reply against him. Would not men allow the infinite God the same sovereign right to manage the affairs of the creation, as the potter exercises in disposing of his clay, when of the same lump he makes one vessel to a more honourable, and one to a meaner use? God could do no wrong, however it might appear to men. God will make it appear that he hates sin. Also, he formed vessels filled with mercy. Sanctification is the preparation of the soul for glory. This is God's work. Sinners fit themselves for hell, but it is God who prepares saints for heaven; and all whom God designs for heaven hereafter, he fits for heaven now. Would we know who these vessels of mercy are? Those whom God has called; and these not of the Jews only, but of the Gentiles. Surely there can be no unrighteousness in any of these Divine dispensations. Nor in God's exercising long-suffering, patience, and forbearance towards sinners under increasing guilt, before he brings utter destruction upon them. The fault is in the hardened sinner himself. As to all who love and fear God, however such truths appear beyond their reason to fathom, yet they should keep silence before him. It is the Lord alone who made us to differ; we should adore his pardoning mercy and new-creating grace, and give diligence to make our calling and election sure.
21. Hath not the potter power over the clay; of the same lump to make one vessel unto honour, and another to dishonour?—"The objection is founded on ignorance or misapprehension of the relation between God and His sinful creatures; supposing that He is under obligation to extend His grace to all, whereas He is under obligation to none. All are sinners, and have forfeited every claim to His mercy; it is therefore perfectly competent to God to spare one and not another, to make one vessel to honor and another to dishonor. But it is to be borne in mind that Paul does not here speak of God's right over His creatures as creatures, but as sinful creatures: as he himself clearly intimates in the next verses. It is the cavil of a sinful creature against his Creator that he is answering, and be does so by showing that God is under no obligation to give His grace to any, but is as sovereign as in fashioning the clay" [Hodge]. But, Second: "There is nothing unjust in such sovereignty."