The question asked by Faithful that Talkative declines to answer references Faithful's explication of the previous question. Faithful specifically asks Talkative to say whether his life demonstrates the facts of the first part of Faithful's preceding explication.
Now to unravel this. First, Faithful asks Talkative how God's "Saving Grace" (the wisdom required to turn to Salvation) is revealed to an individual once it has been awakened within that individual's heart. After some semantic banter, Faithful goes on to state that God's Saving Grace reveals itself to an individual (different from to an onlooker or observer) by (1) convicting the person of sin; (2) inspiring sorrow and shame for sin; (3) inspiring a desire for Salvation through the Savior; (4) igniting hunger and thirstings for the Savior; (5) instilling joy and peace in equal share with Faith in the Savior; (6) awakening a desire for deeper knowledge of the Savior and to serve the Savior.
Finally, Faithful asks Talkative if these six points describe the state of Talkative's inner being. If Talkative were to reply, "Yes," this would indicate that God's Saving Grace is at work in his heart. However, Talkative doesn't reply at all. Instead he blushes, resorts to further semantic debate, refusing to let Faithful judge him, condemns Faithful as a peevish man and, without answering the question, takes his leave by saying "and so adieu."
Faith: It is this. Do you experience the first part of this description
of it? and doth your life and conversation testify the same? or standeth your
Religion in Word or in Tongue, and not in Deed and Truth? Pray, if you incline
to answer me in this, say no more than you know the God above will say Amen
to; and also nothing but what your conscience can justify you in...