6. And he said unto me, It is done. I am Alpha and Omega, the beginning and the end. I will give unto him that is athirst of the fountain of the water of life freely--21:6.
With the proclamation it is done the vision proper concerning the church in tribulation had ended, and the Revelation had ended, and the Revelation was ready to assume the new aspect of the church in the glory of victory rather than in the defeat of persecution. God and Christ are the Alpha and Omega because they are the beginning and the end in creation and in salvation, and here in the promises made to the churches, in faithfulness to finish what had begun. It meant that the vision was completed and the things envisioned would be fulfilled. When God said in the beginning, Let there be light--there was light; and of everything that God said in creation, it was done. The accomplishment of the things envisioned in the apocalypse rested upon the eternal being of God and Christ whose “ word is true from the beginning and whose righteous judgments endureth forever” (Psalms 119:160); and the voice which John heard represented it all as having been done--God’ s word was sure.
The inducement offered to all to drink from the fountain of the water of life freely was the gospel invitation, to all the thirsty people under the blight of heathenism in the land, to come to the fountain of the living waters Christianity-- there was unrestrained liberty to preach salvation and unhindered access to its blessings to all men. It was a restatement and a reproclamation of the Saviour’ s precious invitation: “ Come unto me, all ye that labor and are heavy laden, and I will give you rest. Take my yoke upon you, and learn of me . . . for my yoke is easy, and my burden is light.” (Matthew 11:28-30) The word yoke signified government, and the Lord’ s words were chosen for the comparison of his righteous rule in the hearts of men with the tyrannical rule of the Caesars; and of his power to save men from sin with the dark and despairing hopelessness of heathenism. This vision of the new Jerusalem in the new world of liberation from the evil powers was the offer of gospel blessings to the whole world.