Verses 21 and 22 are not part of the main story line, rather they comment on the story and tell about something that happens later. (See: [[rc://en/ta/man/translate/writing-endofstory]])
"46 years ... 3 days" (See: [[rc://en/ta/man/translate/translate-numbers]])
# you will raise it up in three days?
This remark appears in the form of a question to show that the Jewish authorities understand that Jesus wants to tear down the temple and build it again in three days. AT: "you cannot possibly rebuild it in three days!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
# believed
Here "believe" means to accept something or trust that it is true.