How is Paul's apostleship like a later will that supersedes an earlier one?
Paul's apostleship functions like a later will because his revelations came from the post-resurrection, ascended Christ, not the pre-crucified Christ. Just as a newer will supersedes an older one in court, his later revelations take precedence, making him the primary apostle.
Les explains that Paul’s apostleship is like a later will because Paul received revelations not from the pre-crucified Christ but from the Christ after His death, burial, resurrection, and ascension. Les uses the will illustration: a 1980 will and a later 1990 will both exist, but the courts look at the last one. In the same way, Paul had not walked with Christ as the other apostles did, yet he had further revelations, and at a later time he repeatedly becomes the primary apostle.