If predestination is to be believed, then not everyone can be saved. Christ died for all men. Those who come to the revelation of Christ and His work are predestined for His blessings and promises. Comforting in the fact we have the opportunity to believe in Him, we are destined to live with God our Father and Christ forever in His kingdom. My only thought of praising God in the hearing of the Ephesians, could possibly be that the Ephesians had many false gods. Paul was declaring the One and only True God.