If Israel is explicitly called God’s firstborn, how should Christians understand the place of the Church?

In Exodus 4:22, God tells Pharaoh: >“Israel is my firstborn son.” Later, in the New Testament, believers in Christ (the Church) are described as being adopted into God’s family and as the bride of Christ (Romans 8:15–17, Ephesians 5:25–27). My question is: if Israel is explicitly called God’s firstborn, how should Christians understand the place of the Church? Does the term “firstborn” imply that the Church is “another child” of God, perhaps a “later-born,”? How do different traditions reconcile Israel’s “firstborn” status with the identity of the Church in salvation history?