Deuteronomy 28:13, 47-48

The LORD will make you the head (leader) and not the tail (follower); and you will be above only, and you will not be beneath, if you listen and pay attention to the commandments of the LORD your God, which I am commanding you today, to observe them carefully.

“Because you did not serve the LORD your God with a heart full of joy and gladness for the abundance of all things [with which He blessed you], you will therefore serve your enemies whom the LORD sends against you, in hunger and in thirst, in nakedness and in lack of all things; and He will put an iron yoke [of slavery] on your neck until He has destroyed you.