The New Testament contains four lists of the apostles (see also Mark 3:16–19; Luke 6:14–16; Acts 1:13). These lists are slightly different.
The order of names changes, but the groups remain the same. The main difference is between “Thaddaeus” (10:3; Mark 3:18) and “Judas son of James” (Luke 6:16; Acts 1:13). These may be two names for the same person.