God the Father had decided to adopt as His children only those who believe in Jesus Christ.. All of u must grasp and believe that it is only in His Son that God has prepared to save us from sin. If we don't realize that God predestined us out of His grace to be save from all the sins of the world through Jesus Christ's righteousness; we will succumb to a great misunderstanding and will suffer forever.
God said that all of us who believe in the righteousness of Jesus have become His glory and also that our salvation is His joy! All of us who have been saved throught the Gospel are God's glory and His great work. The salvation He has given us is out of His mercy and is His exceeding great gift and is the greatest gift of His merciful love.