And he said unto them,
How is it that you sought me? knew you not that I must be about my Father's business?
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Cyril of Alexandria
AD 444
Here then first He makes more open mention of Him Who is truly His Father, and lays bare His own divinity: for when the holy Virgin said, Child, why hast Thou so done unto us? then at once shewing Himself to transcend the measure of human things, and teaching her that she had been made the handmaid of the dispensation in giving birth to the flesh, but that He by nature and in truth was God, and the Son of the Father That is in heaven, He says, Did ye not know that I must be at My Father's? 34 Here let the Valentinians, when they hear that the temple was God's, and that Christ was now at His own, Who long before also was so described in the law, and represented as in shadows and types, feel shame in affirming, that neither the Maker of the world, nor the God of the law, nor the God of the temple, was the Father of Christ.
Some passages, also, which occur in the Gospels, receive from them a colouring of the same kind, such as the answer which He gave His mother when He was twelve years of age: "Wist ye not that I must be about My Father's business? "