In this passage, the Apostle Paul addresses a concern that might arise among believers regarding the faithfulness of God's promises to Israel. He clarifies that God's word has not failed, even if it appears that not all Israelites are experiencing the fulfillment of His promises. The distinction Paul makes is between those who are Israelites by physical descent and those who are Israelites in a spiritual sense. This means that being part of God's true people is not about ethnic or national identity but about being part of the spiritual family through faith.
This teaching is significant as it opens the door for all people, regardless of their background, to be part of God's family through faith in Christ. It emphasizes that God's promises are inclusive and based on His grace and mercy, rather than human lineage. This understanding encourages believers to focus on their relationship with God and their faith journey, rather than relying solely on heritage or tradition. It reassures us that God's promises are reliable and that He is faithful to those who seek Him with a sincere heart.