John Wesley on Matthew 23:5

Their phylacteries - The Jews, understanding those words literally, It shall he as a token upon thy hand, and as frontlets between thine eyes, Exod 13:16. And thou shalt bind these words for a sign upon thine hand, and they shall be as frontlets between thine eyes, Deut 6:8; used to wear little scrolls of paper or parchment, bound on their wrist and foreheads, on which several texts of Scripture were writ. These they supposed, as a kind of charm, would preserve them from danger. And hence they seem to have been called phylacteries, or preservatives. The fringes of their garments - Which God had enjoined them to wear, to remind them of doing all the commandments, Num 15:38. These, as well as their phylacteries, the Pharisees affected to wear broader and larger than other men. Mark 12:38.