All the things you mention of a man not yet saved or fallen again in sin, even though once a believer, is indeed true, except that man still has the ability to choose. That Common grace enables him to choose to accept and believe in Christ and have faith in Him.
The man who has faith in Christ is blessed and has the ability by Divine decree to choose without undue influence.
This also sets an example for the angelic domain to observe the justice in His immutable decisions upon the fallen angelic state in the past.
All the things you mention of a man not yet saved or fallen again in sin, even though once a believer, is indeed true, except that man still has the ability to choose. That Common grace enables him to choose to accept and believe in Christ and have faith in Him. What do you do with those that God has sovereignly place in a place or a time where he will never hear the gospel? How does he choose? He has common grace but no gospel
The man who has faith in Christ is blessed and has the ability by Divine decree to choose without undue influence.
Sp faith does not lead to belief but to free will? Is prayer an undue influence?
This also sets an example for the angelic domain to observe the justice in His immutable decisions upon the fallen angelic state in the past.
For what ?
Why would you think it important for the angels to see the justice of God and not the reprobate? How is it an "immutable decision "of Gods if it is mans will?