Basics of Agnostic Christianity:   

Agnosticism is the notion that no one can know anything about God.  Agnostics not only believe that they know nothing about God, but they also feel that no one else knows anything about God.

They do not believe that God can lead His people.  This idea has crept quietly into churches and has deceived many.  God can indeed lead His people.  He does speak through many means.  He never contradicts Himself.  He doesn't speak through raw human reasoning (the reasoning of the human mind without the Intelligence of the Creator flowing through the human mind) or emotion but by His Holy Spirit.   

1 Corinthians 12:1-3... I would not have you ignorant.  Ye know that ye were Gentiles, carried away to these dumb [incapable of articulate speech] idols, even as ye were led.  Wherefore I give you to understand, that no man speaking by the Spirit of God calleth Jesus accursed: and that no man can say that Jesus is the Lord, but by the Holy Ghost.   

2 Peter 1:21 For the prophecy came not in old time by the will of man: but holy men of God spake as they were moved by the Holy Ghost.    

Basic Tenets of Biblical Christianity:

To compare Agnostic Christianity to Biblical Christianity, go here.