Well, first, I do not use the term agnostic here as is commonly used: a person who holds that the existence of the ultimate cause, as God, and the essential nature of things are unknown or unknowable. (While I do assert that the existence of God cannot be known with certainty, I do not use agnostic, in this context, with such a connotation.) Rather, I use the term just as Weatherhead used it:
[A] person who is immensely attracted by Christ and who seeks to show his spirit, to meet the challenges, hardships and sorrows of life in the light of that spirit, but who, though he is sure of many Christian truths, feels that he cannot honestly and conscientiously 'sign on the dotted line' that he believes certain theological ideas about which some branches of the church dogmatize...His intellectual integrity makes him say about many things, 'It may be so. I do not know'.
I am a Christian Agnostic in the sense that I feel drawn to the Christian message, and I feel that in Christianity religion reaches its maturity in the person of Jesus; yet, I also feel that some of Christian doctrine is vague, wrong-headed, implausible and perhaps even wrong. Therefore, I am perfectly fine with saying, "I do not see the evidence for doctrine such and such, so I will abstain from believing it"; and this is where Christian Agnosticism finds it's home.