Malachias 2:10

There is then one God and Father, and not two or three; One who is; and there is no other besides Him, the only true [God]. For “the Lord thy God,” saith [the Scripture], “is one Lord.” And again, “Hath not one God created us? Have we not all one Father? And there is also one Son, God the Word. For “the only-begotten Son,” saith [the Scripture], “who is in the bosom of the Father.” And again, “One Lord Jesus Christ.” And in another place, “What is His name, or what His Son’s name, that we may know?” And there is also one Paraclete. For “there is also,” saith [the Scripture], “one Spirit,” since “we have been called in one hope of our calling.” And again, “We have drunk of one Spirit,” with what follows. …

2. Truly, then, the Scripture declared, which says, “First of all believe that there is one God, who has established all things, and completed them, and having caused that from what had no being, all things should come into existence:” He who contains all things, and is Himself contained by no one. Rightly also has Malachi said among the prophets: “Is it not one God who hath established us? Have we not all one Father?” In accordance with this, too, does the apostle say, “There is one God, the Father, who is above all, and in us all.” Likewise does the Lord also say: “All things are delivered to Me by My Father;” manifestly by Him who made all things; for He did not deliver to Him the things of another, but His own. …

In Malachi: “Hath not one God created us? Is there not one Father of us all? Why have ye certainly deserted every one his brother?” Of this same thing according to John: “Peace I leave with you, my peace I give unto you.” Also in the same place: “This is my commandment, That ye love one another, even as I have loved you. Greater love than this has no man, than that one should lay down his life for his friends.” Also in the same place: “Blessed are the peacemakers, for they shall be called the sons of God.” Also in the same place: “Verily I say unto you, That if two of you shall agree on earth concerning everything, whatever you shall ask it shall be given you from my Father which is in heaven. …

But this is plain. But what the spirit of bondage may be, is not so plain, and there is need of making it clearer. Now what he says is so far from being clear, that it is in fact very perplexing. For the people of the Jews did not receive the Spirit. What then is his meaning here? It is the letter he giveth this name to, for spiritual it was, and so he called the Law spiritual also, and the water from the Rock, and the Manna. “For they did eat,” he says, “of the same spiritual meat, and all drank of the same spiritual drink.” ( 1 Cor. x. 3, 4 .) And to the Rock he gives this name, when he says, “For they drank of that spiritual Rock which followed them.” Now it is because all the rites then wrought were above nature that he calls them spiritual, and not because those who then partook of them received the Spirit. …

“And what connection,” saith some one, “has this, or what has this to do with what was said before?” The Jews brought against Him two accusations; one, that He broke the Sabbath; the other, that He called God His Father, making Himself equal with God. And that this was no imagination of theirs, but His own declared judgment, and that He spake not as do the many, but in a special and peculiar sense, is clear from this circumstance. Many often called God their Father; as “Have we not all one Father, hath not one God created us?” ( Mal. ii. 10 ), but not for that was the people equal to God, on which account the hearers were not offended. …

59. For God not only created them to be men, but called them to be sons, as having begotten them. For the term ‘begat’ is here as elsewhere expressive of a Son, as He says by the Prophet, ‘I begat sons and exalted them;’ and generally, when Scripture wishes to signify a son, it does so, not by the term ‘created,’ but undoubtedly by that of ‘begat.’ And this John seems to say, ‘He gave to them power to become children of God, even to them that believe on His Name; which were begotten not of blood, nor of the will of the flesh, nor of the will of man, but of God.’ And here too the cautious distinction is well kept up, for first he says ‘become,’ because they are not called sons by nature but by adoption; then he says ‘were begotten,’ because they too had received at any rate the name of son. But the People, as says the Prophet, ‘despised’ their Benefactor. …

12. In that place they shall forget this world. There they have no want; and they shall love one another with an abundant love. In their bodies there shall be no heaviness, and lightly shall they fly as doves to their windows . In their thoughts they shall not there remember wickedness at all, nor shall anything of uncleanness arise in their heart. In that place there shall be no natural desire, for there they shall be weaned from all appetites. There shall not arise in their heart anger or lasciviousness; also they shall remove from them all things that gender sins. Fervent in their heart will be the love of each other; and hatred will not be fixed within them at all. They shall have no need there to build houses, for they shall abide in light, in the mansions of the saints. They shall have no need of woven raiment, for they shall be clothed in eternal light. …