# they hold to many other things they have received

The words "things they have received" refers to traditions that they learned from their elders. Alternate translation: "they follow many other traditions" or "they do many other things that they were taught to do"

# copper vessels

"copper kettles" or "metal containers"

# the couches upon which they eat

"benches" or "beds." At that time, the Jews would recline when eating.