Revelation 2:7

The tree of life which Paradise once bore, now again the Church has produced for all, even the ripe and comely fruit of faith. Such fruit it is necessary that we bring when we come to the judgment-seat of Christ, on the first day of the feast; for if we are without it we shall not be able to feast with God, nor to have part, according to John, in the first resurrection. For the tree of life is wisdom first begotten of all. "She is a tree of life to them that lay hold upon her," says the prophet; "and happy is every one that retaineth her." "A tree planted by the waterside, that will bring forth his fruit in due season;" that is, learning and charity and discretion are imparted in due time to those who come to the waters of redemption. He that hath not believed in Christ, nor hath understood that He is the first principle and the tree of life, since he cannot show to God his tabernacle adorned with the most goodly of fruits, how shall he celebrate the feast? How shall he rejoice? Desirest thou to know the goodly fruit of the tree? Consider the words of our Lord Jesus Christ, how pleasant they are beyond the children of men. Good fruit came by Moses, that is the Law, but not so goodly as the Gospel. For the Law is a kind of figure and shadow of things to come, but the Gospel is truth and the grace of life. Pleasant was the fruit of the prophets, but not so pleasant as the fruit of immortality which is plucked from the Gospel.

Of the benefits of martyrdom. In the Proverbs of Solomon: "The faithful martyr delivers his soul from evils." Also in the same place: "Then shall the righteous stand in great boldness against them who have afflicted them, and who took away their labours.

"Who conquers, I will grant to eat from the tree of life," that is, from the fruit of the cross, "which is in the paradise of my God." The church is to be regarded as paradise, for "all things were done in figure," and Adam …

Therefore, however much one may be illuminated by the light of nature and acquired knowledge, one cannot enter into oneself so as within oneself to delight in the Lord, except through the mediation of Christ, who says: I am the door. If anyone enters through …

Every person has a physical ear, but only the spiritual person has a spiritual ear, such as was granted to Isaiah. And to such as conquer in the struggle against the demons, he promised to give "to eat from the tree of life," that is, …

He, that hath an ear, let him hear what the Spirit saith to the churches. By saying this, he clearly shows that in the one church of the Ephesians, he includes the totality of believers. He is not after the ears of the body, but …

He who has an ear, let him hear, etc. What he writes to each, he demonstrates he says to all churches. For it was not only the church of the Ephesians that was to be removed from its place if it did not repent, nor …

To him who overcomes, I will give to eat from the tree of life which is in the paradise of God. The tree of life is Christ, in whose vision in the heavenly paradise, and in the present body of the Church, the holy souls …

He that hath an ear,....

So Christ calls God, "My God and your God" (Joh 20:17; compare Eph 1:17). God is our God, in virtue of being peculiarly Christ's God. The main bliss of Paradise is that it is the Paradise of God;

He that hath an ear - Let every intelligent person, and every Christian man, attend carefully to what the Holy Spirit, in this and the following epistles, says to the Churches. See the note on Mat 11:15, where the same form of speech occurs. To him that overcometh - To him who continues steadfast in the faith, and uncorrupt in his life; who faithfully confesses Jesus, and neither imbibes the doctrines nor is led away by the error of the wicked; will I give to eat of the tree of life. As he who conquered his enemies had, generally, not only great honor, but also a reward; so here a great reward is promised τῳ νικωντι, to the conqueror: and as in the Grecian games, to which there may be an allusion, the conqueror was crowned with the leaves of some tree; here it is promised that they should eat of the fruit of the tree of life, which is in the midst of the paradise of God; that is, that they should have a happy and glorious immortality. There is also here an allusion to Gen 2:9, where it is said, God made the tree of life to grow out of the midst of the garden; and it is very likely that by eating the fruit of this tree the immortality of Adam was secured, and on this it was made dependent. When Adam transgressed, he was expelled from this garden, and no more permitted to eat of the tree of life; hence he became necessarily mortal. This tree, in all its sacramental effects, is secured and restored to man by the incarnation, death, and resurrection of Christ. The tree of life is frequently spoken of by the rabbins; and by it they generally mean the immortality of the soul, and a final state of blessedness. See many examples in Schoettgen. They talk also of a celestial and terrestrial paradise. […]