en_tn/act/01/02.md

until the day that he was taken up

This refers to Jesus's ascension into heaven. Alternate translation: "until the day on which God took him up to heaven" or "until the day that he ascended into heaven" (See: rc://en/ta/man/jit/figs-activepassive)

he had given commands through the Holy Spirit

The Holy Spirit had led Jesus to instruct his apostles on certain things.