en_tn/act/15/16.md

I will build again the tent of David, which has fallen down ... its ruins again

This speaks of God's again choosing one of David's descendants to rule over his people as though he were setting up a tent again after it fell down. (See: rc://en/ta/man/translate/figs-metaphor)

tent

Here "tent" stands for David's family. (See: rc://en/ta/man/translate/figs-metonymy)