He gave it a form and character which caused it to outlive that reaction to energise it to the present day and which will cause it to advance until its final conflict with Christianity must determine whether Christ or Satan shall reign on this earth in the end

Can you repeat this sentence, but add in punctuation?
He gave it a form and character which caused it to outlive that reaction, to energise it to the present day, and which will cause it to advance until its final conflict with Christianity must determine whether Christ or Satan shall reign on this earth in the end."