Wherefore I take you to record this day, that I am pure from the blood of all men.  For I have not shunned to declare unto you the whole counsel of God. (Acts 20: 26-27) 

Paul declared the “whole counsel of God” to the church at Ephesus.  It was that complete teaching of God’s will unto them that allows him to claim innocence concerning the fate of these brethren in the future.  He exhorts the Ephesian elders to use this complete teaching to guide them in shepherding the flock in Ephesus.  Unfortunately, it seems that by the end of the first century, the church at Ephesus is rapidly falling away from the faith. (Rev 2: 1-5).  This was despite the fact that they were armed with the “whole counsel of God”.  I wonder how they would have fared had they not been so well equipped.  It just doesn’t seem as though they would have been better off with less knowledge of God’s word. 

Now consider this.  It took Paul 3 years, warning them night and day with tears, to declare unto them “the whole counsel of God”. (Acts 20: 31)  At 30 minutes a week, how long do you think it would take for you to hear the “whole counsel of God” from your preacher.  If the only exposure that you have to God’s word is that Sunday morning sermon, then you’re not getting as much of God’s word as you need.  That’s like trying to do war with the devil without taking any weapons.  (Eph 6: 11-17)  Understanding God’s will takes a lot more than 30 minutes a week.