Proverbs 7:3

upon thy fingers like some precious, engraved ring, at once an ornament and a memento.

The reference to the phylactery "placed at the bend of the left arm," the thong of which "was wound about the arm in a spiral line, which ended at the top of the middle finger" (Smith's Dict. of Bible, Frontlets) is less probable; though the Pharisee might no doubt read into such a passage as this a sanction of his broad phylactery.