Bede the Venerable — as excerpted in the Catena Aurea on Luke 2:42-50

“(in Hom. post Epiph.) Now that the Lord came up every year to Jerusalem at the Passover, betokens His humility as a man, for it is man’s duty to meet together to offer sacrifices to God, and conciliate Him with prayers. Accordingly the Lord as man, did among men what God by angels commanded men to do. Hence it is said, According to the custom of the feast day. (Gal. 3:14, Judges 6:20; 13:16.) Let us follow then the journey of His mortal life, if we delight to behold the glory of His divine nature.”