Obedience = Abundant prosperity

Deuteronomy 28:11-14 (New International Version)

11 The LORD will grant you abundant prosperity--in the fruit of your womb, the young of your livestock and the crops of your ground--in the land he swore to your forefathers to give you.  12 The LORD will open the heavens, the storehouse of his bounty, to send rain on your land in season and to bless all the work of your hands. You will lend to many nations but will borrow from none.  13 The LORD will make you the head, not the tail. If you pay attention to the commands of the LORD your God that I give you this day and carefully follow them, you will always be at the top, never at the bottom.  14 Do not turn aside from any of the commands I give you today, to the right or to the left, following other gods and serving them.