In the book bearing his name, Joel says so little about matters other than his message that even the time of his prophecy can only be estimated ​ — about 820 B.C.E., nine years after Uzziah became king over Judah.
عبارت ‏ « یوئیل بن فَتُوئیل » تنها مطلبی است که یوئیل در بارهٔ خود در کتابی که به نام او نامیده می‌شود نگاشته است .‏