Lewis Sperry Chafer emphasizes that the division between the Old Testament and the New Testament occurs at the cross of Christ, not between Malachi and Matthew. Each Gospel portrays Christ in a distinct role: Matthew as the King, Mark as Jehovah's servant, Luke as the perfect human, and John as the Son of God. The message of the 'kingdom of heaven' in Matthew's Gospel is directed towards Israel, focusing on repentance and righteous living in preparation for the earthly Davidic kingdom. The legal requirements presented in the Sermon on the Mount are meant to condition life in the future earthly kingdom, distinct from the message of grace in the New Testament.

In this sermon by W.J. Erdman, the focus is on the message that Christians have to bear in order to lead others to salvation. The Gospel preached by angels and echoed by Paul centers around Jesus - His birth as a Savior, His dignity as the Son of God, His royal right to the throne, His divine character, His mission to save people from their sins, His crucifixion, resurrection, and imminent return. The angels' role transitions from proclaiming the birth of Jesus to announcing His resurrection and His second coming, emphasizing the importance of believers sharing the Gospel message.

John F. Walvoord delves into the significance of the Davidic covenant in the Old Testament doctrine of premillennialism, emphasizing its enduring promises to David's seed, throne, and kingdom. The covenant is often overlooked by amillenarians who spiritualize prophecies, leading to a neglect of the literal interpretation intended by David and the Jews. The covenant assures an eternal throne and kingdom for David's posterity, with Christ fulfilling this covenant as the rightful heir to the throne. The New Testament confirms Christ as the fulfillment of the Davidic covenant, with a distinction between His present session and His future righteous reign on earth during the millennium.