Here is a contrasting study note on the same verse (Ephesians 1:5) (Ryrie)
God has determined beforehand that those who believe in Christ will be:
1) Adopted into His family
2) Conformed to His Son
It [these actions] involves
1) A choice on His [God's] part (verse 4)
2) it is done in love (V. 4)
3) It is based on the good pleasure of His perfect will (V. 5, 9, 11)
4) Its purpose is to glory God 9v. 14)
5) It does not relieve man of his responsibility to believe the gospel(V. 13)
1) Adopted into His family
2) Conformed to His Son
It [these actions] involves
1) A choice on His [God's] part (verse 4)
2) it is done in love (V. 4)
3) It is based on the good pleasure of His perfect will (V. 5, 9, 11)
4) Its purpose is to glory God 9v. 14)
5) It does not relieve man of his responsibility to believe the gospel(V. 13)