en_tn/jhn/21/25.md

If each one were written down

You can translate this in an active form. AT: "If someone wrote down all of them" (See: rc://en/ta/man/translate/figs-activepassive)

even the world itself could not contain the books

John exaggerates to emphasize that Jesus did many more miracles than what people could write about in many books. (See: rc://en/ta/man/translate/figs-hyperbole)

the books that would be written

You can translate this in an active form. AT: "the books that people could write about what he did" (See: rc://en/ta/man/translate/figs-activepassive)