4.39-40 Sraddhavan etc.  Ajnah etc.  Here the idea of the passage is this :  The  incoming of faith and the performance of activities intending this  [knowledge],  both spring up soon no doubt, if one, being a believer, entertains no doubt.  Therefore, one should remain being favoured by the preceptors and the scriptures, and not entertaining any doubt.  For, the doubt is a destroyer of everything  [good].  Indeed a person with doubt knows nothing, because he does not have faith.  Hence one should remain without doubt.					
 The subject matter that has been  elaborated in this entire chapter is now summarised by a pair of the [following] verses :