By these words the apostle brings before our eyes God's omnipotent power as carrying into effectual performance the counsel of his own will towards the objects of his distinguishing favour. An especial blessing is couched in this. Next to a believing view of the purposes of God's grace, and a sweet persuasion of our interest in them, nothing is more strengthening and encouraging than a realising apprehension of the power of God to carry them into full execution.
Feeling, as we do, our own miserable helplessness, sinking under the pressure of our daily weakness, mourning over continual failures, and grieving on account of perpetual backslidings, encompassed by foes, and distressed by fears, how strengthening it is to our faith, thus tried to the utmost, to believe that he who has purposed has power to perform.
This persuasion of the almighty power of God was the support and strength of Abraham's faith, which bore him up in the face of seeming impossibilities, and whereby he gave glory to God (Rom. 4:18-21). When, then, as walking in the steps of the faith of Abraham, we can look up believingly to the God and Father of the Lord Jesus Christ, as we behold sovereign grace in his heart, and infinite wisdom in his mind, so we see almighty strength in his arm, and thus become sweetly persuaded that all which his loving heart feels, his infinite wisdom directs, and his omnipotent power can execute.