“We must be sanctified and made holy, and all the men and angels in the universe can’t do that. They have not power enough to raze out the old image of Satan, nor skills enough to draw the image of God upon our souls.
This is a work of the almighty power and wisdom of God, which is Christ: ‘Christ the power of God, and wisdom of God,’ (1 Corinthians 1:24); ‘And what is the exceeding greatness of His power towards us who believe, according to the working of His mighty power,’ (Ephesians 1:19).
There is none else that can fill our hearts with grace. We must receive of His fullness and grace for grace.
‘Tis He alone that has received the Spirit without measure: ‘For He whom God hath sent speaketh the words of God, for God giveth not the Spirit by measure unto Him’ (John 3:34).
He is an infinite vessel. He has enough for Himself and for us too, but it is not so with angels.
None else can give us spiritual wisdom, for none know the things of the Spirit. And Christ alone can send into our hearts the Holy Spirit to dwell in us, to teach us heavenly things.
There is no other Vine that we can be ingrafted into, that can communicate vital and spiritual nourishment, and, at last eternal life unto us but Christ alone, by whom and for whom are all things, who is before all things, by whom all things consist.
There needs an almighty power to give us our natural life, and less will not suffice to give us our spiritual life.
There is no one else who can conquer our enemies but Christ alone: Power that can conquer the world, power that can triumph over the devil and make a show of him openly, as Christ did upon the cross; power that overcame death and broke his bands, power that can take away his sting, and power that can raise us up at the last day; power that can make us happy when we get into the other world.
Christ Jesus is the only source and fountain of true happiness. ‘Tis He alone that can fill the soul and satisfy it forever.
Christ Jesus is the only complete Redeemer that has worthiness enough, that has enough power, and enough wisdom, and an inexhaustible fountain of grace sufficient for our spiritual life here and our eternal life hereafter.”
–Jonathan Edwards, “Life Through Christ Alone” in Sermons and Discourses, 1720-1723, The Works of Jonathan Edwards, Vol. 10. Ed. Wilson H. Kimnach (New Haven: Yale University Press, 2006), 524-525. You can read this sermon on John 6:68 in its entirety here.