Numbers 15:38
38. bid them that they make them fringes in the borders of their garments—These were narrow strips, in a wing-like form, wrapped over the shoulders and on various parts of the attire. "Fringe," however, is the English rendering of two distinct Hebrew words—the one meaning a narrow lappet or edging, called the "hem" or "border" (Mt 23:5; Lu 8:44), which, in order to make it more attractive to the eye and consequently more serviceable to the purpose described, was covered with a riband of blue or rather purple color; the other term signifies strings with tassels at the end, fastened to the corners of the garment. Both of these are seen on the Egyptian and Assyrian frocks; and as the Jewish people were commanded by express and repeated ordinances to have them, the fashion was rendered subservient, in their case, to awaken high and religious associations—to keep them in habitual remembrance of the divine commandments.
Deuteronomy 22:12
12. thou shalt make thee fringes upon the four quarters—or, according to some eminent biblical interpreters, tassels on the coverlet of the bed. The precept is not the same as Nu 15:38.