Think of the staggering implication of this thought; It only took one man (Adam) for sin and death to come into this entire world from the beginning of time up to this present moment and till the end. Condemnation came through only one man and his sin. Therefore death came to all men. BUT!
Through one Man’s righteous act (Jesus death on the cross) the free gift of life came to all men. Through His obedience many will be made righteous. Notice it does not say ‘all’ but ‘many’. Not ‘all’ will believe this wonderful glorious message. Do you? Adam?