Matthew 6:29 - Ellicott's Commentary On The Whole Bible

I say unto you. — The formula of emphasis is not without a special force here (comp. Matthew 18:10; Matthew 18:19). Man’s gaze was drawn to the “gorgeous apparel,” the gold-embroidered robes of kings and emperors. Jewish traditions as to the glory of Solomon represented even his attendants as clothed in purple, and with hair glittering with gold-dust. He, the true Son of David, saw in the simplest flower that grows a glory above them all. “The lily shames the king.”