Be discerning. ( Acts 17 v 10 - 12 )

I am going through the whole of the Psalms as my daily reading ,using a devotional commentary , a friend of mine is likewise reading the Psalms,he is not using any commentary.Both are valid ,some proud people tell you don't need books,it seems so spiritual  to say that you just need the Bible.I don't agree , in fact I strongly disagree. The  fact is I am limited, as we all are, and as a minister ,I know that people need to to be taught from God's word.I realise that there people who are preaching ,and writing books,that to say the least are dubious,and doing a lot of harm to people.It is not a new thing,in the OT we read of false prophets, who laid God's people astray, with dire consequences.We are all as Christians  called to be  discerning. CP 1 John 4 v 1-3. Which reads,' Dear friends , do not believe every spirit , but test the spirit to see whether they are from God, because many false prophets have gone out into the world. Then he goes unto tell them how to recognise  who is genuine ,and who is not genuine.The is a major theme throughout the epistle,who is genuine and who is not. John Stott highlights certain things as to how we judge people,' Moral, doctrinal,'social . faith ,love,and holiness.If these things are missing, then  we may ask the question as to there genuineness.  .