en_tn_condensed/act/20/05.md

these men had gone before us

"these men had traveled ahead of us"

before us ... for us

Here "us" refers to the writer and Paul and those traveling with them, but not to the reader. (See: rc://en/ta/man/jit/figs-exclusive)

Troas

This is the name of a place. (See: rc://en/ta/man/jit/translate-names)