en_tn/rev/22/12.md

the Alpha and the Omega, the First and the Last, the Beginning and the End

These three phrases share similar meanings and are combined to emphasize that Jesus has been here for all time. (See: rc://en/ta/man/translate/figs-parallelism and rc://en/ta/man/translate/figs-merism).

the Alpha and the Omega

See how you translated this in Revelation 1:7.

Alpha and Omega

this should be culturally interpreted. For example, alpha and omega mean nothing to someone who doesn't have knowledge of the Greek alphabet, so they should find an appropriate equivalent in their language/for their culture.

the First and the Last

See how you translated this in Revelation 1:17.

the Beginning and the End

See how you translated this in Revelation 21:5.