# within your gates

"within your community" or "inside your city" 

# the unclean ... persons

A person who is not acceptable for God's purposes is spoken of as if the person were physically unclean. 

# the clean persons

A person who is acceptable for God's purposes is spoken of as if the person were physically clean.

# a gazelle or a deer

See how you translated these in Deuteronomy 12:15.