Israel despite witnessing God's mighty works—His deliverance from Egypt, the plagues upon Pharaoh, the parting of the Red Sea, and His continual provision in the wilderness—many of Abraham’s descendants did not belief. As stated in Exodus 7:3-5, God hardened Pharaoh’s heart so that His glory would be displayed to Israel, demonstrating His power and sovereignty. Yet, even after these miraculous signs, many of the Israelites faltered in believing.
They quickly turned to idolatry, crafting a golden calf to worship in direct defiance of God's command (Exodus 32:1-6). They grumbled about their conditions, despite God's daily provision of manna and water (Numbers 11:4-6, Exodus 17:6). When God led them to the edge of the Promised Land, they refused to enter out of fear, distrusting His promise of victory over their enemies (Numbers 14:1-4). Some, like Korah and his followers, openly challenged Moses' leadership, bringing God's judgment upon them (Numbers 16:1-35). Others defiled themselves by taking foreign wives, disregarding God's command to remain holy and set apart (Numbers 25:1-3).
Because of their unbelief, many perished in the wilderness, never seeing the fulfillment of God's promise. This pattern of disobedience reflects the words of 1 Peter 2:7-8: "The stone that the builders rejected has become the cornerstone, and a stone of stumbling and a rock of offense. They stumble because they disobey the word, as they were destined to do." Their rejection of God's covenant was not simply a matter of action but of the condition of unbelief, demonstrating that they were not truly the children of the promise.
Paul expands on this idea in Galatians 3:7, "Know then that it is those of faith who are the sons of Abraham." In the new covenant we enter the kingdom of God through new birth of the Spirit, this is the only way Jesus said we can enter. This sealing of the promised Holy Spirit marks "his own" as children of the promise, as Paul states in Romans 2:28-29 "For no one is a Jew who is merely one outwardly, nor is circumcision outward and physical. But a Jew is one inwardly, and circumcision is a matter of the heart, by the Spirit, not by the letter. His praise is not from man but from God."This reinforces the understanding that true lineage is not defined by ancestry but by belief. Furthermore, Galatians 3:29 proclaims, "And if you are Christ's, then you are Abraham's offspring, heirs according to promise." Here, the promise finds its ultimate fulfillment in Christ, through whom all believers are grafted into the family of faith. And the Jew of the flesh is grafted out through unbelief. The inclusivity of God's covenant is a recurring theme.
In Acts 10:34-35, Peter declares, "Truly I understand that God shows no partiality, but in every nation anyone who fears him and does what is right is acceptable to him." This underscores that faith and obedience, not heritage, are the criteria for being part of "The People of the Promise." The new covenant affirms that God's promise to Abraham, that all nations would be blessed through him as stated in Genesis 12:3, is fulfilled through Jesus Christ.
Obedience plays a vital role in this spiritual identity. James 2:17 reminds us, "So also faith by itself, if it does not have works, is dead." Abraham's willingness to obey God, even to the point of offering his son Isaac, exemplifies the dynamic relationship between faith and action. As Hebrews 11:8 states, "By faith Abraham obeyed when he was called to go out to a place that he was to receive as an inheritance." His actions mirrored his belief in God's promises, setting a standard for all who follow.
The promise given to Abraham extends beyond physical blessings. In Genesis 22:18, God assures Abraham, "And in your offspring shall all the nations of the earth be blessed, because you have obeyed my voice." This foreshadows the redemptive work of Christ, the ultimate fulfillment of the promise, who brings salvation to people of all nations, not one nation nor people. Christ is the way, the new covenant in his blood allows for the fulfilment of the promises of God (all the promises of God and yes and amen in Christ) and through these precious promises we will escape the corruption in this world. We have much to celebrate in the resurrection of Christ, being children of the promise.
In conclusion, "The Children of the Promise" transcends physical lineage, embodying the spiritual inheritance that comes through faith, new birth, and maturing into obedience as we become conformed to the image of his son. Romans 4:16 summarizes, "That is why it depends on faith, in order that the promise may rest on grace and be guaranteed to all his offspring—not only to the adherent of the law but also to the one who shares the faith of Abraham, who is the father of us all." This identity unites believers across time and space, bound by a shared trust in God's promises and a shared commitment to His will. May this understanding inspire us to live as heirs of the promise, faithful, and obedient to the God who calls us His own.