Jew and Gentile together in Christ as the eternal plan of God

Ephesians 2:1-22, we often stop at v. 10, but should read to at least the end of the chapter. As it displays the fact that both Jew and Gentile are under sin. Though we were children of wrath - that is children dispose of all maliceness and hatefulness - God by His unmeritted favour so loved His people before the foundations of the world to make one body composed of Jew and Gentile in Christ Jesus. You can also read this throughout the OT as well - Zechariah 6:15; Ezekiel 47:22-23; 37:15-19. He alone not only predestined us but also he alone quickened us together - Psalm 119:25.