During the time of Jesus’ life and ministry—but prior to His death on the cross—people were directed to believe the gospel of the kingdom (Matt 3:1-2; 4:17; Mark 1:14-15). The gospel of the kingdom directed Israelites to look to Jesus as the promised Messiah. This meant looking to Jesus as the “the Lamb of God who takes away the sin of the world!” (John 1:29; cf. Isa 53:4-11). Faith in Jesus would result in their spiritual and eternal salvation. The object of their faith is Christ alone. John wrote, “whoever believes in Him will have eternal life” (John 3:15), and “God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life” (John 3:16), and “He who believes in the Son has eternal life” (John 3:36). And Jesus pointed others to Himself, saying, “For this is the will of My Father, that everyone who beholds the Son and believes in Him will have eternal life, and I Myself will raise him up on the last day” (John 6:40), and “Truly, truly, I say to you, he who believes has eternal life” (John 6:47; cf., John 10:28). The gospel of the kingdom also pertained to Israel’s theocratic kingdom, where God would rule over His people through Jesus, the descendant of David and rightful King of the nation (2 Sam 7:16; Psa 89:3-4, 35-37; Isa 9:6-7; Jer 23:5; 33:15; Luke 1:31-33; Matt 19:28; 25:31; Rev 11:15; 20:4-6). John the Baptist preached, “Repent, for the kingdom of heaven is at hand” (Matt 3:2). To be “at hand” meant the earthly kingdom was being offered to Israel. Additionally, the gospel of the kingdom was preached by Jesus and His disciples even after John had been arrested. Mark wrote, “Now after John had been taken into custody, Jesus came into Galilee, preaching the gospel of God, and saying, ‘The time is fulfilled, and the kingdom of God is at hand; repent and believe in the gospel’” (Mark 1:14-15; cf. Matt 9:35; 10:5-7). Norman Geisler correctly states, “The messianic kingdom is a visible, earthly, political kingdom promised to Israel in which Christ, her Messiah, will reign from a throne in Jerusalem over the whole earth, with His apostles and other disciples serving Him.”[1] Merrill F. Unger states, “The Gospel of the Kingdom [is] the good news that God’s purpose is to establish an earthly mediatorial kingdom in fulfillment of the Davidic covenant (2 Sam 7:16).”[2] If the leadership and people Israel would change their minds (i.e., repent) and accept Jesus as their rightful King, they would experience national deliverance from Gentile tyranny, which they were experiencing, being under the rule of Rome. According to Arnold Fruchtenbaum, “Jesus went around Israel, city to city and synagogue to synagogue, proclaiming His Messiahship and preaching the gospel of the Kingdom. He was offering to Israel the Kingdom of the Jewish prophets, but the Kingdom was preconditioned by Israel’s acceptance of Him as the Messianic King.”[3] We know that Israel rejected Jesus as the Messiah (Matt 12:24-32; 27:20-23),[4] and the result was the kingdom offer was taken away (Matt 21:43), and judgment was pronounced upon them (Matt 23:37-39; Rom 11:25-26). Afterwards, Jesus was crucified for the sins of the world (John 3:16; 1 John 2:2), was buried, and raised again on the third day (1 Cor 15:3-4). The crucifixion of Jesus was part of God’s predetermined plan for the redemption of humanity, regardless of Israel’s response. The gospel of the kingdom was postponed until the time of the Tribulation. According to Merrill F. Unger: "Two proclamations of the gospel of the kingdom are mentioned, one already past, beginning with the ministry of John the Baptist, carried on by our Lord and His disciples, and ending with the Jewish rejection of the Messiah. The other preaching is yet future (Matt 24:14), during the Great Tribulation, and heralding the second advent of the King."[5] The gospel of the kingdom that was preached by John the Baptist, and Jesus and His disciples, cannot be the gospel of grace that is preached by Christians today. Why? The content of the gospels are different. Paul preached “the gospel of the grace of God” (Acts 20:24), which was “to everyone who believes, to the Jew first and also to the Greek” (Rom 1:16), whereas the gospel of the kingdom was solely “to the lost sheep of the house of Israel” (Matt 10:6). Furthermore, the gospel of grace includes “the cross of Christ” (1 Cor 1:17), telling us that “Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures” (1 Cor 15:3-4). But the death, burial, and resurrection of Jesus was not communicated by the disciples when they preached the “gospel of the kingdom” (Matt 4:23). How do we know this? After Jesus had been rejected by the leadership of Israel, Matthew tells us, “Jesus began to show His ...
