YES he did. JD 6:4, Joseph Smith, April 6, 1844 "Here, then, is eternal life − to know the only wise and true God; and you have got to learn how to be Gods yourselves, and to be kings and priests to God, the same as all Gods have done before you,................." Brigham Young also taught that. JD 3:93, Brigham Young, August 8, 1852 "Man is made an agent to himself before his God; he is organized for the express purpose, that he may become like his master. You recollect one of the Apostle's sayings, that when we see Him, we shall be like Him; and again, we shall become Gods,..........." You said we can become LIKE Him, but God said in Isaiah 46:9 "..........I am God, and there is no other; I am God, and there is NONE LIKE me."