Tractates on the Gospel of John

¹³ But John adds: “As many as received Him.” What did He afford to them? Great benevolence! Great mercy! He was born the only Son of God, and was unwilling to remain alone. Many men, when they have not sons, in advanced age adopt a son, and thus obtain by an exercise of will what nature has denied to them: this men do. But if any one have an only son, he rejoices the more in him; because he alone will possess everything, and he will not have any one to divide with him the inheritance, so that he should be poorer.

Not so God: that same only Son whom He had begotten, and by whom He created all things, He sent into this world that He might not be alone, but might have adopted brethren. For we were not born of God in the manner in which the Only-begotten was born of Him, but were adopted by His grace. For He, the Only-begotten, came to loose the sins in which we were entangled, and whose burden hindered our adoption: those whom He wished to make brethren to Himself, He Himself loosed, and made joint-heirs.

For so says the apostle, “But if a son, then an heir through God.” And again, “Heirs of God, and joint-heirs with Christ.” He did not fear to have joint-heirs, because His heritage does not become narrow if many are possessors. Those very persons, He being possessor, become His inheritance, and He in turn becomes their inheritance. Hear in what manner they become His inheritance: “The Lord has said unto me, You are my Son, this day have I begotten You. Ask of me, and I will give You the nations for Your inheritance.” Hear in what manner He becomes their inheritance.

He says in the Psalms: “The Lord is the portion of mine inheritance, and of my cup.” Let us possess Him, and let Him possess us: let Him possess us as Lord; let us possess Him as salvation, let us possess Him as light. What then did He give to them who received Him? “To them He gave power to become sons of God, even to them that believe in His name;” that they may cling to the wood and cross the sea.