John 14:21

And the form of a servant will pass away. For to this end He had manifested Himself, that He might execute judgment. After the judgment, He shall go hence, will lead with Him the body of which He is the head, and deliver up the kingdom of God. Then will openly be seen that form of God which could not be seen by the wicked, to whose vision the form of a servant must be shown. He says also in another place on this wise: "These shall go away into everlasting burning" (speaking of certain on the left), "but the just into life eternal;" of which life He says in another place: "And this is eternal life, that they may know Thee the one true God, and Jesus Christ whom Thou hast sent." Then will He be there manifested, "who, being in the form of God, thought it not robbery to be equal with God." Then He will manifest Himself, as He has promised to manifest Himself to them that love Him. For "he that loveth me," saith He, "keepeth my commandments; and he that loveth me shall be loved of my Father; and I will love him, and will manifest myself to him." He was present in person with those to whom He was speaking: but they saw the form of a servant, they did not see the form of God. They were being led on His own beast to His dwelling to be healed; but now being healed, they will see, because, saith He, "I will manifest myself to him." How is He shown equal to the Father? When He says to Philip, "He that seeth me seeth my Father also."

"He that hath my commandments," He adds, "and keepeth them, he it is that loveth me." He that hath [them] in his memory, and keepeth them in his life; who hath them orally, and keepeth them morally; who hath them in the ear, and keepeth them in deed; or who hath them in deed, and keepeth them by perseverance;-"he it is," He says, "that loveth me." By works is love made manifest as no fruitless application of a name. "And he that loveth me," He says, "shall be loved of my Father, and I will love him, and will manifest myself to him." But what is this, "I will love"? Is it as if He were then only to love, and loveth not at present? Surely not. For how could the Father love us apart from the Son, or the Son apart from the Father? Working as They do inseparably, how can They love apart? But He said, "I will love him," in reference to that which follows, "and I will manifest myself to him." "I will love, and will manifest;" that is, I will love to the very extent of manifesting. For this has been the present aim of His love, that we may believe, and keep hold of the commandment of faith; but then His love will have this for its object, that we may see, and get that very sight as the reward of our faith: for we also love now, by believing in that which we shall see hereafter; but then shall we love in the sight of that which now we believe.

(Tract. lxxv. 5) He that hath them in mind, and keepeth them in life; he that hath them in words, and keepeth them in works; he that hath them by hearing, and keepeth them by doing; he that hath them by doing, and keepeth them by persevering, he it is that loveth Me. Love must be shown by works, or it is a mere barren name. (Tract. lxxv. 5) I will love him, as if now He did not love him. What meaneth this? He explains it in what follows: And will manifest Myself unto him, i. e. I love him so far as to manifest Myself to him; so that, as the reward of his faith, he will have sight. Now He only loves us so that we believe; then He will love us so that we see. And whereas we love now by believing that which we shall see, then we shall love by seeing that which we have believed. (ad Paul. de videndo Dei, Ep. 112:100, 10) He promises to show Himself to them that love Him as God with the Father, not in that body which He bore upon earth, and which the wicked saw.

Whoever loves me and keeps my commandments will enjoy my love and that of the Father and will obtain in addition a vision of who I really am. They will not be disadvantaged by the fact that they did not see me in body. Indeed, …

Jesus has added the qualification "he who loves me," clearly showing that none other than those who have chosen to live most righteously will be allowed to choose such an incomparable grace, for they are the ones who love him. While it is true that Christ raises the bodies of all—for there will be a resurrection of the evil and the good alike—a new life of glory and happiness will not be given to all without distinction. For it is clear that some only rise again to punishment and will have a life worse than any death, while others … will live a desirable and holy life in Christ.