And he said to them: How is it that you sought me? did you not know, that I must be about my father’s business?

“How is it that ye sought me? - Is not this intended as a gentle reproof? Why had ye me to seek? Ye should not have left my company, when ye knew I am constantly employed in performing the will of the Most High. My Father's business? - Εν τοις του πατρος μου, My Father's concerns. Some think that these words should be translated, In my Father's house; which was a reason that they should have sought him in the temple only. As if he had said, Where should a child be found, but in his father's house? This translation is defended by Grotius, Pearce, and others; and is the reading of the Syriac, later Persic, and Armenian versions. Our Lord took this opportunity to instruct Joseph and Mary concerning his Divine nature and mission. My Father's concerns. This saying, one would think, could not have been easily misunderstood. It shows at once that he came down from heaven. Joseph had no concerns in the temple; and yet we find they did not fully comprehend it. How slow of heart is man to credit any thing that comes from God!”

“about my Father's business--literally, "in" or "at My Fathers," that is, either "about My Father's affairs," or "in My Father's courts"--where He dwells and is to be found--about His hand, so to speak. This latter shade of meaning, which includes the former, is perhaps the true one, Here He felt Himself at home, breathing His own proper air. His words convey a gentle rebuke of their obtuseness in requiring Him to explain this. "Once here, thought ye I should so readily hasten away? Let ordinary worshippers be content to keep the feast and be gone; but is this all ye have learnt of Me?" Methinks we are here let into the holy privacies of Nazareth; for what He says they should have known, He must have given them ground to know. She tells Him of the sorrow with which His father and she had sought Him. He speaks of no Father but one, saying, in effect, My Father has not been seeking Me; I have been with Him all this time; "the King hath brought me into His chambers . . . His left hand is under my head, and His right hand doth embrace me" (Sol 1:4; Sol 2:6). How is it that ye do not understand? (Mar 8:21).”