Numbers 15:38-40

38“Speak to the Israelites and tell them that throughout their generations they are to make tassels for the corners of their garments, and put a blue cord on the tassel at each corner.

39These will serve as tassels for you to look at, so that you may remember all the Lord’s commands and obey them and not prostitute yourselves by following your own heart and your own eyes.

40This way you will remember and obey all my commands and be holy to your God.