An Old Testament Theology of Prosperity
The prosperity gospel teaches that God wants his people to be wealthy and healthy. At its core is often the idea that in Christ God has restored to us the blessings of the covenant made with Abraham. These blessings are understood in a primarily material way, including good health, economic prosperity, and an all-round victory in most areas of life. Prosperity gospel preachers rely heavily on the Old Testament to make this case, arguing that God promises his people abundant wealth and abounding health.
Source: christiandaily.com