"Now these Jews were more noble than those in Thessalonica, for they received the word with all eagerness, examining the scriptures daily to see if these things were so" (Acts 17:11).
Paul has found it rough going on this, his first venture onto the European continent. In Philippi he was first arrested and then forced to leave the city. In Thessalonica he finds fierce opposition from Jews unhappy with his new message, and has to be smuggled out of the city by dark of night. Now he is in Beroea, where he finds Jews at least willing to listen to his message, and to test its relevance to scripture. He will then go on to Athens, where he finds a warm welcome in a city known for its philosophical discourse, and so very willing to hear his arguments.
The point, I think, is that to grow in spiritual awareness it is necessary to keep an open mind, trusting your inner spiritual Guide to sort and choose. To hold to old beliefs out of fear is to stay stuck at whatever level of awareness you are. There is always more to know about Spirit, and about our own Oneness and purpose. And, so long as we are centered in Truth, there is nothing to fear from other voices.