The Bible tells us we need to attend church so we can worship God in Spirit and in truth with other believers and be taught His Word for our spiritual growth (Acts 2:42; Hebrews 10:25). Church is the place where believers can encourage one another, serve one another, instruct one another, honor one another, and be kind and compassionate to one another. Read more "Why is church attendance important?" http://www.gotquestions.org/church-attendance.html
This book is a repetition of very much both of the history and of the laws contained in the three foregoing books, which repetition Moses delivered to Israel (both by word of mouth, that it might affect, and by writing, that it might abide) a little before his death.