There are eight types of kingdoms mentioned in the Bible. Two of those kingdoms-the kingdom of God and the kingdom of heaven-constitute the central message of the New Testament. If all the text that speaks directly of these two kingdoms were removed from the New Testament, there wouldn't be enough left to fill up a single page in the newspaper. Yet the kingdom message is completely unknown by a large majority of ministers and their congregations all across this land. There has never been anything spoken so much, yet understood so little. The errors of reformed theology and Armenianism alike are rooted in a misunderstanding of the kingdoms. Most cults, and many of the denominational differences today, can be traced to a lack of understanding of the mystery of the kingdoms. The key to understanding the entire Bible is found in knowing the differences among the eight kingdoms, but especially these two-the kingdom of God and the kingdom of heaven. When readers finish reading this book, they will assuredly know the difference.