According to LDS, why doesn't omniscient God know about the existence of any other Gods?

Elder Jeffrey R. Holland of the Church of Jesus Christ of Latter Day Saints (LDS) has taught that the Father, the Son, and the Holy Ghost are separate persons, three divine beings . Thus, there currently are at least three separate and distinct beings to whom the term *God* applies within the context of our world and within the sphere of our knowledge. Additionally, in the future there will be an as yet unspecified number of Gods when certain individuals achieve exaltation and become equally divine. Another official LDS teaching is that God knows all things , i.e. God is omniscient. The Book of Mormon teaches: > 20 O how great the holiness of our God! For he knoweth all things, and there is not anything save he knows it. (2 Nephi 9:20) Of the many times in the book of Isaiah alone where God declares Himself to be the only God there is one particular passage where, in addition to the claim that He is the only God and that He declares the future, He also says that He knows of no other God: > **Thus saith the LORD** the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and **beside me there is no God**. And **who, as I**, shall call, and **shall declare** it, and set it in order for me, since I appointed the ancient people? and **the things that are coming, and shall come**, let them shew unto them. Fear ye not, neither be afraid: have not I told thee from that time, and have declared it? ye are even my witnesses. **Is there a God beside me? yea, there is no God; I know not any**. - Isaiah 44:6-8 According to the Church of Jesus Christ of Latter Day Saints, why doesn't omniscient God, *who declares things that are and that will be* (future does not limit His omniscience), know about the existence of any other Gods? ____________________________________________________________________________ *A point of clarification*: This question is not about God's declarations of singularity and how LDS interprets them--that has already been addressed here , here , and here . This question asks why omniscient God does not know of the other Gods that LDS claims exist. *In defense of non-duplication*: Here is an extended explanation detailing why this question is not a duplicate and why answers given thus far to this question and other related question do not answer this question.