Isaias 33:17

Let us further inquire whether the Lord took any care to foreshadow the water [of baptism] and the cross. Concerning the water, indeed, it is written, in reference to the Israelites, that they should not receive that baptism which leads to the remission of sins, but should procure another for themselves. The prophet therefore declares, “Be astonished, O heaven, and let the earth tremble at this, because this people hath committed two great evils: they have forsaken Me, a living fountain, and have hewn out for themselves broken cisterns. …

“And when those who record the mysteries of Mithras say that he was begotten of a rock, and call the place where those who believe in him are initiated a cave, do I not perceive here that the utterance of Daniel, that a stone without hands was cut out of a great mountain, has been imitated by them, and that they have attempted likewise to imitate the whole of Isaiah’s words? For they contrived that the words of righteousness be quoted also by them. But I must repeat to you the words of Isaiah referred to, in order that from them you may know that these things are so. They are these: ‘Hear, ye that are far off, what I have done; those that are near shall know my might. The sinners in Zion are removed; trembling shall seize the impious. …

Therefore, since the sons of Israel affirm that we err in receiving the Christ, who is already come, let us put in a demurrer against them out of the Scriptures themselves, to the effect that the Christ who was the theme of prediction is come; albeit by the times of Daniel’s prediction we have proved that the Christ is come already who was the theme of announcement. Now it behoved Him to be born in Bethlehem of Judah. For thus it is written in the prophet: “And thou, Bethlehem, are not the least in the leaders of Judah: for out of thee shall issue a Leader who shall feed my People Israel.” But if hitherto he has not been born, what “leader” was it who was thus announced as to proceed from the tribe of Judah, out of Bethlehem? For it behoves him to proceed from the tribe of Judah and from Bethlehem. …

44. For as two advents of our Lord and Saviour are indicated in the Scriptures, the one being His first advent in the flesh, which took place without honour by reason of His being set at nought, as Isaiah spake of Him aforetime, saying, “We saw Him, and He had no form nor comeliness, but His form was despised (and) rejected (lit. = deficient) above all men; a man smitten and familiar with bearing infirmity, (for His face was turned away); He was despised, and esteemed not.” But His second advent is announced as glorious, when He shall come from heaven with the host of angels, and the glory of His Father, as the prophet saith, “Ye shall see the King in glory;” and, “I saw one like the Son of man coming with the clouds of heaven; and he came to the Ancient of days, and he was brought to Him. …

Come, ye saints, who disciplined yourselves in mountains and caves and dens of the earth, who honoured my name by continence and prayer and virginity. Come, ye maidens, who desired my bride-chamber, and loved no other bridegroom than me, who by your testimony and habit of life were wedded to me, the immortal and incorruptible Bridegroom. Come, ye friends of the poor and the stranger. Come, ye who kept my love, as I am love. Come, ye who possess peace, for I own that peace. …

In Zechariah: “Tell ye the daughter of Zion, Behold, thy King cometh unto thee: just, and having salvation; meek, sitting upon an ass that hath not been tamed.” Also in Isaiah: “Who will declare to you that eternal place? He that walketh in righteousness, and holdeth back his hands from gifts; stopping his ears that he may not hear the judgment of blood; and closing his eyes, that he may not see unrighteousness: this man shall dwell in the lofty cavern of the strong rock; bread shall be given him, and his water shall be sure. …

Let us diligently ask for mercy, that we may receive whatsoever is necessary for us. Let us seek His Kingdom and His righteousness, that we may receive increase in the land. Let us think upon the things which are above, on the heavenly things, and meditate on them, where Christ has been lifted up and exalted. But let us forsake the world which is not ours, that we may arrive at the place to which we have been invited. Let us raise up our eyes on high, that we may see the splendour which shall be revealed. Let us lift up our wings as eagles, that we may see the body there where it is. Let us prepare as offerings for the King desirable fruits, fasting and prayer. Let us guard His pledge in purity, that He may trust us over all His treasury. For whosoever deals falsely with His pledge, they suffer him not to enter into the treasure-house. …