Sonship—the full expression of His Son—is God’s goal in the many sons. How could He bring that about? By justifying them and then by glorifying them. In His dealings with them God will never stop short of that goal. He set Himself to have sons, and to have those sons, mature and responsible, with Him in glory. He made provision for the whole of Heaven to be peopled with glorified sons. That was His purpose in redemption.