en_obs-tn/content/26/02.md

place of worship

That is, "the building where the Jews gathered to worship God." This can also be translated as, "worship building."

scroll

A scroll was a long sheet of paper or leather that was rolled up and had writing on it.

the scroll of the prophet Isaiah

That is, "the scroll that had the words that the prophet Isaiah had written." Isaiah had written on a scroll hundreds of years before. This was a copy of that scroll.

opened up the scroll

This could be translated as, "rolled open the scroll" or, "unrolled the scroll."