What does the Bible say about Gentiles being partakers of God's promises?

In Ephesians 2:19 and Ephesians 3:6, the apostle Paul asserts that Gentiles, who were previously aliens and strangers to the covenants of promise, have now been included in the household of God. This inclusion is rooted in the eternal purpose of God, whereby Gentiles are made fellow heirs and partakers of the promise through the gospel of Jesus Christ. This significant change highlights the mercy of God in breaking down the barriers that once divided Jews and Gentiles, making them one in Christ by the blood of His cross.