The Apostle Paul turns the first chapter of Ephesians into a hymn of praise to the God who blessed us with “every spiritual blessing” in Christ. The first blessing he reviews is predestination. That makes no sense to some people! Predestination is normally a topic for late night debates among Christians. But that’s not how Paul sees it. For him it is a cause for celebration!
This should change the way we read passages like this one.
As Paul talks about being chosen by God before God even made the world, he moves us to worship God. All of God’s work to save us is “to the praise of his glorious grace.”