John Calvin on Luke 2:46

46. Sitting in the midst of the doctors Rays of divine brightness must have evidently shone in this child: otherwise those haughty men would not have permitted him to sit along with them. Though it is probable that he occupied a lower seat, and not the rank of the doctors, yet such disdainful men would not have condescended to give him an audience in a public assembly, if some divine power had not constrained them. This was a sort of prelude to his public calling, the full time of which had not yet arrived. In this way, however, he intended to give nothing more than a taste, which would immediately have faded from the recollection of men, had not Mary kept it for us laid up in her heart, (ver. 19, 51,) to bring it out afterwards, along with other treasures, for the use of all the godly.