Is Every Lie A Lie Upon God?
To lie upon God (a major sin) means to attribute something to God that He did not tell us. We should restrict ourselves to what has been clearly communicated to us and refrain from hypothesizing or drawing unnecessary logical conclusions in religion. This is especially true in the matters relating to God and everything in the category of mutashabihat ( Discussion 55767 ), since some of these might lead us to attributing lies upon God themselves.