Is this sentence correct ?

Question

Nothing in the whole universe speaks louder than sun for the existence of God. 

Answer 1

Favorite Answer

I prefer: Nothing in the entire universe speaks for the existence of God louder than the sun.

Why?  Because "for the existence of God" is a prepositional phrase used as an adverb to modify speaks.  The sun speaks for the existence of God.  It does not modify sun (sun for the existence of God) 

Answer 2

Insert the word "the" before the word "sun" and your sentence will be grammatically correct.

Whether it's factually correct is of course a whole different issue.

Answer 3

No, the sun does not speak. Gods do not exist.

Answer 4

..... than The Sun .....