tagma denotes an ordered sequence in which Christ is first and those belonging to him follow at his coming.

The attested use marks an ordered sequence: in 1 Corinthians 15:23, Christ is named first and those belonging to Christ are placed afterward at his coming.

1. an ordered sequence of events · dominant

   The dative singular neuter form τάγματι occurs in the clause assigning each one a place in sequence. In 1 Corinthians 15:23 the APB renders the clause, "But each in his own order: Christ the firstfruits, then those who belong to Christ at his coming," showing Christ first and those belonging to him afterward.

   1 Corinthians 15:23

In the Anselm Project Bible: In 1 Corinthians 15:23, the APB presents the sequence with "each in his own order" and then names Christ first and those belonging to Christ afterward. The verse is read as a whole.