en_tn/act/13/04.md

General Information:

Here the words "they," "They," and "their" refer to Barnabas and Silas.

So

This word marks an event that happened because of a previous event. In this case, the previous event is Barnabas and Saul being set apart by the Holy Spirit.

went down

The phrase "went down" is used here because Seleucia is lower in elevation than Antioch.

Seleucia

a city by the sea