The essence of Jesus Christ's message centers on the Kingdom of God, a theme that permeates His ministry as He preached repentance and the good news of this Kingdom. This same message was echoed by John the Baptist and the apostles, and it accompanied Paul in his teachings. Grasping God's purpose for humanity begins with comprehending the Kingdom, a concept with various applications in Scripture. One significant usage emerges in the Parable of the Wicked Vinedressers, where Jesus declares that the Kingdom of God will be taken from the audience of chief priests and elders and given to a nation bearing its fruits. This statement refers to a dominion then in existence, serving as a rebuke to the nation for their inability to receive the word of the Kingdom. The parable reflects the experience of John, Jesus, and the apostles, who encountered interest and some willingness to repent among the people, yet found little depth due to hearts far from their King. Only those prepared by God, like the good soil in the Parable of the Sower, could hear and understand the word of the Kingdom, bearing fruit amidst a multitude unable to perceive or respond.

Physical Israel serves as a type of the Kingdom of God, illustrating both the potential and the pitfalls of being part of His divine governance. God offered Israel the opportunity to embody His Kingdom in a physical form, as seen in the preamble to the Ten Commandments, intending them to demonstrate how His rule operates. However, Israel rejected God as their King, desiring a visible, human leader to guide them in battle and represent them, thus throwing away the privilege of being part of His Kingdom. Despite this rejection, God continued to work with them, though their actions often served as a negative example for future generations. Much later, Jesus Christ confirmed this rejection, declaring that the Kingdom would be taken from physical Israel and given to a nation redeemed by Him, identifying this new nation as His chosen people, a holy nation formed from those who were not previously a people. This historical pattern underscores the ongoing plan of God to establish His Kingdom, first through a physical type in Israel, and ultimately in a spiritual and literal form through His redeemed.

Biblically, the phrase Kingdom of Heaven describes God's dominion, often referring to the nation/kingdom founded through Abraham when Jesus spoke to Judah's leaders or multitudes. God's rulership is evident in Abraham and his descendants, yet Jesus prophesied that the kingdom of God would be taken from Judah's leaders and given to a nation bearing its fruits, as seen in the Parable of the Wicked Vinedressers. The Parable of the Mustard Seed illustrates the Kingdom's humble beginnings with Abraham by faith, growing mightily from one man into a multitude, though it concludes with spiritual uncleanness as birds, symbolizing satan and demons, nest in its branches. In contrast, the Parable of the Pearl of Great Price depicts the Kingdom as a singular, precious gem of supreme value and purity, sought and purchased by a merchant, representing Jesus Christ, who sacrificed all to redeem a spiritual nation defined by the faith of Abraham. This physical nation, descended from Abraham, became corrupted by unbelief and demonic influence, unable to receive the truth of God's dominion. However, God's intervention hid the treasure of faith in a few, making the spiritual nation so valuable that Christ paid an incomprehensible price to purchase it, proving its great worth as an assembly where faith is active.

The concept of Israel as the Kingdom of God reveals a profound connection between the divine and the physical nation. The phrase "kingdom of heaven" carries multiple meanings, one of which applies to the physical Kingdom of Israel, established by God in heaven and governed by Him. When Jesus delivered the parables in Matthew 13 to the multitudes, including the remnant of Judah, His teachings often reflected the condition of this physical kingdom. In the Parable of the Mustard Seed, He illustrates how Israel, though intended to grow through God's increase, fell into idolatry and demonic influences, mirroring the corruption foretold by Moses. Similarly, the Parable of the Leaven depicts the covenantal relationship between God and Abraham's family as having degenerated completely, with Israel adopting pagan beliefs and practices that leavened the entire kingdom. By the time Jesus spoke, the Judaism He encountered was a corrupted blend of Scripture, Babylonian influences, Hellenism, and hardened traditions, showing a kingdom far from its divine purpose. Jesus highlighted this spiritual decay, noting that He came to His own, the descendants of Abraham, and they did not receive Him. Consequently, He declared that God would take the kingdom from its current caretakers and entrust it to a spiritual nation, defined by faith rather than physical lineage. In Luke's account of the Mustard Seed and Leaven parables, the context further emphasizes a testimony against the kingdom's condition and its leadership, revealing their warped beliefs and practices that aligned them more with their spiritual captor than with their Creator.

Israel, in the Old Testament, was God's Kingdom on earth, a nation over which God ruled directly, embodying the core idea of divine sovereignty. This concept of the Kingdom of God signifies not just a geographical domain but also God's authority and right to govern, reflecting His reign wherever and whenever it is in effect. While the Kingdom of God was a present reality for Israel, John the Baptist's proclamation signaled a shift in understanding, which Jesus would further explain and inaugurate through His ministry and church, emphasizing both an immediate entrance for the chosen and the future culmination of God's rule.

God chose Abraham and his descendants, later known as Israel, to work through in bringing the blessing of salvation to all mankind. Abraham possessed special qualities that pleased Him, and through a close relationship, God molded Abraham to pass down an affinity for His way to his descendants. This created a people with a special link to Him, positioning Israel as a model nation for His purposes, though not inherently better than others, but holding a unique place in His heart. In the events following the exodus from Egypt, God proposed His covenant with Israel, outlining its purpose. His plan focuses on Israel through the fulfillment of promises, making the Israelites His primary agents for bringing His plan to pass, especially through the house of David and its greatest descendant, Jesus of Nazareth. While God sometimes uses Gentiles, He predominantly employs Israelites to advance His plan. As sovereign over all, God maneuvers Israel into positions to influence history according to His will. In ancient times, nearly every world empire interacted with Israel or Judah, playing significant roles in the development of His plan. Even after consigning Israel to disobedience, God continues to use Israel and Judah to move events forward. In fulfillment of promises of prosperity and power to Abraham, Isaac, and Jacob, He has allowed the descendants of Joseph to rise into great nations, using their might and influence to push other peoples to accomplish steps in His plan. The tiny State of Israel, largely peopled by descendants of Judah, wields disproportionate influence in world affairs, drawing global attention to its conflicts. God declares that Jerusalem will remain a central focus, a cup of drunkenness and a heavy stone for all peoples, right through the time of the end, as He works out matters to prepare for His Son's return to establish His Kingdom on earth.

Under God's plan of salvation, an individual's descent or station in life is no excuse for unbelief and sin, nor must it be a hindrance to faith and obedience. The Jews, the natural children of faithful Abraham and heirs of the promises made to him, will be cast out if they fail to demonstrate humility and faith. Such is their fate if they continue to reject the Messiah, from whom all blessings flow. Yet those whom God calls to join in the faith of Abraham, no matter who they are in this world, will find themselves exalted as Christ's brethren. It is they, coming from east and west, who will sit down in fellowship with the esteemed patriarchs in the Kingdom of God, in the New Jerusalem.

The concept of Israel as the Kingdom of God carries profound significance within the promises made to Abraham and the spiritual journey of God's people. Historically, Israel was once the Kingdom of God on earth, and it is destined to be so again, though not yet, as something greater must first unfold. The 1st century Jews held a traditional view that the Kingdom promises would be fulfilled through Israel being restored as an independent nation of this world, led by a Davidic king. However, this understanding differed from the Christian concept, which points to a future millennial and eternal Kingdom as prophesied by Jesus and the apostles. This traditional Jewish perspective, while not entirely incorrect, was limited in scope, focusing on an earthly kingdom rather than the spiritual reality magnified by Jesus' teachings. The early chapters of Acts reveal Jews living communally, sharing prosperity while awaiting Christ's imminent return, reflecting their belief in a soon-to-be-established earthly kingdom. The term "rest," used frequently in Hebrews 4, became a code word among 1st century Jews for the time when Israel would enter its own kingdom and land under a righteous king, free from political turmoil, evil social pressures, warfare, and the temptations of foreign cultures and religions. It symbolized peace, prosperity, leadership, and influence of a quality they had never fully experienced in their long history. Yet, Jesus and the apostles expanded this concept, preaching the gospel of the Kingdom of God on a broader scale, emphasizing a spiritual inheritance. The promises to Abraham grew from a specific land to a worldwide dominion, ultimately encompassing the entire earth as an eternal inheritance for the saints. Hebrews 4 clarifies that the rest promised to God's people remains unfulfilled, not achieved under Joshua when Israel entered the Promised Land, which served only as a type of the true rest. This rest now pertains to the spiritual children of Abraham, the Israel of God, rather than solely the physical nation. The author of Hebrews warns that just as ancient Israel failed to enter this rest due to unbelief, so too must the current people of God persevere in faith to avoid a similar fate. The Sabbath, tied to the concept of rest through the Greek term sabbatismos, serves as a sign and reminder of this coming Kingdom rest. It typifies both the Millennium, when Israel will be restored to its inheritance to worship God as commanded, and the eternal Kingdom rest of the children of God, born into His Family and prepared to rule under Jesus Christ. Thus, the weekly Sabbath observance remains a key practice, celebrating both the physical and spiritual creation, and keeping the focus on the certainty of God's promises yet to be fulfilled.