# my masters

This was a term of respect Lot used for the angels.

# please turn aside into your servant's house

"Please come and stay in your servant's house"

# wash your feet

People liked to wash their feet after traveling.

# we will spend the night

When the two angels said this, they were referring only to themselves, not to Lot. The two of them planned to spend the night in the square. Some languages would use the exclusive form of "we" here.

# town square

This is a public, outdoor place in the town.