en_tn/act/09/23.md

the Jews planned together to kill him

"him" refers to Saul.

But their plan became known to Saul

This clause might need to be stated as an active clause as, "But someone told their plan to Saul." (See: rc://en/ta/man/translate/figs-activepassive)

So they watched the gates

This city had a wall surrounding it. People could only enter and exit the city through the gates.

his disciples

people who believed Saul's message about Jesus and were following his teaching.