en_tn/mat/20/30.md

There were two blind men sitting

This is sometimes translated as "Behold, there were two blind men sitting." Matthew is alerting us to a new people in the story. Your language may have a way of doing this.

When they heard

"When the two blind men heard"

was passing by

"was walking by them"

Son of David

Jesus was not David's literal son, so this may be translated as "Descendant of King David." However, "Son of David" is also a title for the Messiah, and the men were probably calling Jesus by this title.