Kingdom of God Not Spiritual

An overarching emphasis of the Bible concerns the King and His kingdom. In fact, from Genesis through Revelation, God points to the ongoing battle with Satan concerning who will rule the earth's kingdom. This is important study helps answer many questions.
• 1. A study of the kingdom offers a greater understanding of the nation of Israel.
• 2. A study of the kingdom helps delineate the differences between the Jews, the Gentiles and the Church of God.
• 3. A study of the kingdom proves that God's promises never fail especially concerning His promises to Israel yet to be realized in the future.
It is very important to study God's future kingdom and the similarities and differences between the Kingdom of Heaven and the Kingdom of God.
• The Kingdom of God in the Church Age
The Bible Indicates a prominent shift from the preaching of Christ (and the apostles during the ministry of Christ) to the preaching of the apostle Paul to the Church. Christ's preaching during His earthly ministry repeatedly emphasized the kingdom, while Paul's preaching following the crucifixion of Christ clearly emphasized the apex of God's grace.
Yet, this well-defined shift in prominence does not indicate that Christ's preaching was graceless; nor does the shift signify that Paul's preaching ignored the kingdom. Just the opposite is true on both accounts. In fact, there are four references in the book of Acts stating that Paul preached the Kingdom of God. For example, consider the following statement made by the apostle Paul: Acts 20:25

Yet, some teachers discount this mentioning of Paul's preaching of the Kingdom of God as only applicable during Paul's Acts missionary journeys. However...