"We heard Jesus say." The word "we" refers to the people who brought false testimony against Jesus and does not include the people to whom they are speaking. (See: [[rc://en/ta/man/translate/figs-exclusive]])
Here "hands" refers to men. Alternate translation: "made by men ... without man's help" or "built by men ... without man's help" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
The word "temple" is understood from the previous phrase. It may be repeated. Alternate translation: "will build another temple" (See: [[rc://en/ta/man/translate/figs-ellipsis]])