The book is the second to the last of the Minor Prophets in the second (Prophets) division of the Hebrew Bible. Neither Jews nor Christians seriously challenged its canonicity. One reason for this is the fact that the New Testament quotes and alludes to Zechariah so often, about 41 times.14
Until A.D. 1653 no one seriously questioned that Zechariah wrote the whole book. In that year Joseph Mede suggested that Jeremiah may have written chapters 9-11, in view of Matthew 27:9. In succeeding years other scholars proceeded to question the second part of the book (chs. 9-14) because of its differences in content and historical and chronological references compared to the first part. Today almost all critical scholars regard this book as the product of two or three writers who wrote either before the exile or after Zechariah.15The presence of predictive prophecy in the last chapters of the book has encouraged those who deny the miraculous to relegate this part to a later time and writer(s).
"We maintain it is impossible to confine or restrict the Spirit of God in His revelatory purposes. If He cares to predict an event three centuries off, He is sovereign; and if it pleases Him to foretell the plan of God a millennium before its materialization, He is just as sovereign. We emphasize this because we believe it to be the sine qua nonof reverent, acceptable interpretation of Biblical prophecy."16
Competent conservative scholars have refuted the arguments of these critics adequately.17
"In the nature of the case it is not possible to prove conclusively who wrote chapters 9-14, but when every argument has been considered the fact remains that all fourteen chapters have been handed down to us as one book in every manuscript so far discovered. Even the tiny fragment of the Greek manuscript found at Qumran, which includes the end of chapter 8 and the beginning of chapter 9, shows no gap or spacing whatsoever to suggest a break between the two parts."18