Was God once a man?

LDS teach and believe God was once a man. Know God in the form of Jesus was a man, He came took on flesh and died for us, But JS teaches God was once a man like we are and exalted to Godhood and became a God. JS teaches this in the King Follet Discourse.

Below are quotes taken from the discourse that show JS saying he will show this from the Bible. He never did show this from Scripture and I would ask the LDS who believe this teaching to give Bible based support to show this is true. If you cannot pleae explain how JS is not a liar and false prophet and how you can believe him, despite evidence.

My first object is to find out the character of the only wise and true God, and what kind of a being he is; and if I am so fortunate as to be the man to comprehend God, and explain or convey the principles to your hearts, so that the Spirit seals them upon you, then let every man and woman henceforth sit in silence, put their hands on their mouths, and never lift their hands or voices or say anything against the man of God or the servants of God again.

I will go back to the beginning, before the world was, to show what kind of a being God is. What sort of a being was God in the beginning? Open your ears and hear, all ye ends of the earth; for I am going to prove it to you by the Bible, and to tell you the designs of God in relation to the human race, and why he interferes with the affairs of man.

God himself was once as we are now, and is an exalted man, and sits enthroned in yonder heavens. That is the great secret. If the vail was rent to-day, and the great God who holds this world in its orbit, and who upholds all worlds and all things by his power, was to make himself visible,--I say, if you were to see him to-day, you would see him like a man in form--like yourselves, in all the person, image, and very form as a man; for Adam was created in the very fashion, image, and likeness of God, and received instruction from, and walked, talked, and conversed with him, as one man talks and communes with another.

In order to understand the subject of the dead, for the consolation of those who mourn for the loss of their friends, it is necessary that we should understand the character and being of God, and how he came to be so; for I am going to tell you how God came to be God. We have imagined and supposed that God was God from all eternity, I will refute that idea, and will take away and do away the vail, so that you may see.

It is the first principle of the Gospel to know for a certainty the character of God and to know that we may converse with him as one man converses with another, and that he was once a man like us; yea, that God himself the Father of us all, dwelt on an earth the same as Jesus Christ himself did; and I will show it from the Bible.

Rick B