1:20 Who were Hymenaeus and Alexander and what does Paul mean that he delivered them unto Satan?
1:20 Who were Hymenaeus and Alexander and what does Paul mean that he delivered them unto Satan?
These two men had cast away their faith and become blasphemers (CP V19 with V20).
Blaspheme here means to speak evil of, slander, hurt the reputation.
Delivered unto Satan means to excommunicate from the church - disfellowship.
The purpose for this was remedial, not punishment (CP 1Cor 5:1-13; 2Th 3:14).
Hymenaeus was also a false teacher who taught that the resurrection was past, causing many to depart from the faith (CP 2Ti 2:16-18).
Alexander is also mentioned in Paul's second letter to Timothy but whether he and Alexander in 1 Ti 1:20 are one and the same is not known (CP 2Ti 4:14).
There are three other references to the name Alexander in scripture but it is unlikely that they also refer to the Alexander in 1Ti 1:20 (CP Mk 15:21; Ac 4:6; 19:33-34).