Believer, consider your salvation. It is not accomplished by human power, but by God Himself, and He is mighty, “mighty to save” (Isa. 63:1).

We could not earn our salvation. Just as Israel, though they pledged to obey God, turned away over and again throughout the Old Testament, so we once lived in sin and ourselves were estranged from Him, by nature children of wrath (Eph. 2:3).

Yet even while we were enemies, He reconciled us to Himself (Rom. 5:10). How mighty is our God, who, by the blood of His son, could turn sinners from their wicked ways and make them His children, and when He appears, we will be like Christ (1 Jn. 3:2).

No amount of work, no might of man nor human ingenuity could perform such a mighty deed.

Of course, God exhibits his might in saving physically as well. For how many times did He deliver a small contingent of His people from great armies (ex. Judges 7:7)? Or to save Daniel from the lions (Dan. 6:16-23), or Shadrach, Meshach, and Abed-nego from the flames of the furnace (Dan. 3:19-27)?

Martin Luther penned in his hymn that “a mighty fortress is our God,” and mighty He is indeed.

Praise God that He is not only merciful to save us (Tit. 3:5), but mighty to do so as well (Isa. 63:1)!


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Spurgeon’s Morning and Evening Devotions

Morning, January 14

"Mighty to save." Isaiah 63:1

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. Nay, this is not all the meaning, for the divine power is equally seen in the after-work. The life of a believer is a series of miracles wrought by "the Mighty God." The bush burns, but is not consumed. 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. Believer, here is encouragement. Art thou praying for some beloved one? Oh, give not up thy prayers, for Christ is "mighty to save." You are powerless to reclaim the rebel, but your Lord is Almighty. Lay hold on that mighty arm, and rouse it to put forth its strength. Does your own case trouble you? Fear not, for His strength is sufficient for you. Whether to begin with others, or to carry on the work in you, Jesus is "mighty to save;" the best proof of which lies in the fact that He has saved you. What a thousand mercies that you have not found Him mighty to destroy!

1/14/2026