Clarkian's Revelation and Morality

I have been reading Gordon H. Clark's work Religion, Reason and Revelation in order to under the issues better of Equal Ultimacy which I have slim knowledge of.
It has been good so far, yet some things I have difficulty understanding. Might be worth another read through sometime. But there is a quote from Newman Smyth (I have not heard of him) whom Clark quotes which says, 

Old theology is always becoming new in the vitalizing influence of ethics. . . . It is reason enough for doubting and for restudying any traditional teaching or received word of doctrine if it be felt to harass or confuse the Christian conscience of an age. Nothing can abide as true in theology which does not prove its genuineness under the ever renewed searching of the Christian moral sense. . . . Still less can we allow in Christian ethics any dogmatic belief which would put in bonds the Christian ethical principle itself; as, for instance, the tenet that morality is dependent upon the divine will. . . . Christian ethics cannot consent to commit suicide in any supposed interest of theology.

Clark does not agree with the quote (Neither do I). But he says the reason why is that Smyth separates as Kant and Plato does the truth and the practical. That is truth is set in one arena while ethics is what matters here and now. That the practical is the judge of what is true based upon what the quote says is interesting. It kind of informed me that as a Christian I am to be both the dispenser of truth and while also (not watering the truth down) but showing its practicalness or applying the very truth to the hearers of truth.