We are so used to thinking as individuals in our individualistic countries that we don’t normally read Paul correctly. Who is the “us” to whom Paul refers? I suggest he speaks of all the members of the Body of Christ—all of Christ’s disciples everywhere. When we see it this way, we will understand that God chose that Body before the earth was made, a Body to be holy and blameless, a people group appointed for sonship long before any individuals in that group were born—and all the other wonderful things in God’s great plan, including His intention to ultimately unite every one in Himself!
Now try reading the passage with “us” being the whole Body instead of a select group of individuals, and all will become clear with no predestination, determinism or Calvinism!
Blessed be the God and Father of our Lord Jesus Christ, who has blessed us in Christ with every spiritual blessing in the heavenly places, even as he chose us in him before the foundation of the world, to be holy and blameless before him. In love he pre-appointed us for sonship through Jesus Christ, in keeping with the purpose of his will, to the praise of his glorious grace, with which he has blessed us in the Beloved One. In him we have redemption through his blood, the forsaking of our trespasses, according to the riches of his grace, which he lavished upon us, in all wisdom and insight, making known to us the secret of his will, in keeping with his purpose, which he set forth in Christ as a plan for the fullness of time, to unite all things in him, things in heaven and things on earth. (Ephesians 1:3-10)