Test everything. (Proverbs 3 v 5 )

We are coming near the end of the exhortations in 1 Thessalonians  5 v 13 ff.                                                                                                                                                                                                                                                                        ''Test  everything '' v 21                                                                    I have a set of New Testament ,daily study helps,I  considered them highly,because of the help I received in my sermon preparation. The author appeared to indicate that he held to the deity of Christ,so I purchased  the authors ,' Spiritual Autobiography ' and in there he clearly declares  that Christ is not God, that everyone is going to be saved, and death of  Christ was not a sacrifice for sin.He himself said that he was no theologian , you would in light of this ,think he would have had the humility to look to them, for guidance,but not so. So take heed to those words, ''Test Everything'', hold fast to what scripture clearly teaches.