From Apocalypse Explained ~ Emanuel Swedenborg
I am the Alpha and the Omega, Beginning and End, signifies that He governs all things from firsts through ultimates, and thus all things of heaven to eternity. This is evident from the signification of "the Alpha and the Omega," as being the first and the last, or in firsts and in ultimates; and He who is in firsts and in ultimates also governs intermediates, thus all things. These things are said of the Lord's Divine Human, for they are said of Jesus Christ, by which name His Divine Human is meant. By means of this the Lord is in firsts and in ultimates. But that He governs all things from firsts through ultimates, is an arcanum that cannot as yet be perceived by man; for man knows nothing of the successive degrees into which the heavens are divided, and into which also the interiors of man are divided; and he scarcely knows that man as to flesh and bones is in his ultimates. Neither does he perceive how intermediates are governed from firsts through ultimates; and yet in order that He might thus govern all things, the Lord came into the world that even to ultimates, that is, even to flesh and bones, He might assume the Human and glorify it, that is, make it Divine. That the Lord put on such a Human, and took it with Him into heaven, is known in the church from this, that He left nothing of His body in the sepulcher; also from His own words to His disciples:See My hands and My feet, that it is I Myself; handle Me and see, for a spirit hath not flesh and bones as ye behold Me having (Luke 24:39).By this Human, therefore, the Lord is in ultimates; and by making even these ultimates Divine, He put Himself into the Divine power of governing all things from firsts through ultimates. If the Lord had not done this, the human race on this earth would have perished in eternal death....
(Apocalypse Explained 41)