Rhetorical: Since there are two resurrections, Abinadi can use the righteous/unrighteous designation of the two to define the types of people who will participate. Very pointedly he says that the prophets, who have all testified of the atoning Messiah (Mosiah 13:33), will be in this first resurrection. Abinadi is emphasizing that those prophets - those who have published peace - those who have testified of the atoning Messiah - are the righteous.