Numbers 15:38-39

38“Speak to the sons of Israel, and tell them that they shall make for themselves 1tassels on the corners of their garments throughout their generations, and that they shall put on the tassel of each corner a cord of blue.

39It shall be a tassel for you 2to look at and 3remember all the commandments of the Lord, so as to do them and not 4follow after your own heart and your own eyes, after which you played the harlot,