#returned

The implied information about where he was returning to can be made explicit: "returned to where he was living." (See: [[:en:ta:vol1:translate:figs_explicit]])

#Melchizedek, king of Salem

This is the first time this king is mentioned.

#bread and wine

People commonly ate bread and wine. See how you translated "bread" in [[:en:bible:notes:gen:03:17|3:19]] and "wine" in [[:en:bible:notes:gen:09:20|9:21]].