en_tn/rev/01/20.md

stars

These stars are symbols that represent the seven angels of the seven churches. (See: rc://en/ta/man/jit/writing-symlanguage)

lampstands

The lampstands are symbols that represent the seven churches. See how you translated this in Revelation 1:12. (See: rc://en/ta/man/jit/writing-symlanguage)

the angels of the seven churches

Possible meanings are that these "angels" are 1) heavenly angels who protect the seven churches or 2) human messengers to the seven churches, either messengers who went from John to the churches or the leaders of those churches.

seven churches

This refers to seven churches that actually existed in Asia Minor at that time. See how you translated this in Revelation 1:11.