Deuteronomy 28:31

28:31 Your ox will be slaughtered before your very eyes but you will not eat of it. Your donkey will be stolen from you as you watch and will not be returned to you. Your flock of sheep will be given to your enemies and there will be no one to save you.

Deuteronomy 6:8

6:8 You should tie them as a reminder on your forearm and fasten them as symbols on your forehead.