By the words "to save" we understand the whole of the great work of salvation, from the first holy desire onward to complete sanctification. The words are multum in parro: indeed, here is all mercy in one word. Christ is not only "mighty to save" those who repent, but he is able to make men repent. He will carry those to heaven who believe; but he is, moreover, mighty to give men new hearts and to work faith in them. He is mighty to make the man who hates holiness love it, and to constrain the despiser of his name to bend the knee before him…. He is mighty to keep his people holy after he has made them so, and to preserve them in his fear and love until he consummates their spiritual existence in heaven. Christ’s might doth not lie in making a believer and then leaving him to shift for himself; but he who begins the good work carries it on; he who imparts the first germ of life in the dead soul, prolongs the divine existence, and strengthens it until it bursts asunder every bond of sin, and the soul leaps from earth, perfected in glory.
Amen and amen. “He who began a good work in you will bring it to completion at the day of Jesus Christ,” (Philippians 1:6, ESV). He chose us, drew us, sealed us and sanctified us for His glory. He is mighty to save.