William Burkitt on Revelation 22:13

As if Christ had said, "I am the eternal God, the first cause and the last end of all things; I first made the world, and I will at last put a period to it; and when time shall be no more, they shall for ever be happy in the enjoyment of me, who have here obeyed me, and lived in conformity to my doctrine and example; they shall through holiness enter the gates of the New Jerusalem, that glorious city, having the tree of life in it; present blessedness, as well as future happiness, belongs to those that obey God's will, and keep his commandments; blessed are they, and blessed for ever shall they be."