Oliver Cowdery, in his blessing to Joseph, speaks of the "Ancient of Days" being subordinate to "God."
Blessing from Oliver Cowdery to Joseph Smith Jr., September 22, 1835; rep. H. Michael Marquardt, comp. Early Patriarchal Blessings of The Church of Jesus Christ of Latter-day Saints (Salt Lake City, UT: Smith-Pettit Foundation, 2007), 52
The records of past ages and generations, and the histories of ancient days shall he bring forth: even the record of the Nephites shall he again obtain, with all those hid up by Mormon, and others who were righteous, and many others, till he is overwhelmed with knowledge. No precious thing shall slumber from his possession, for he shall be covered with the most choice of all ages. till his soul shall be satisfied and his heart shall say, Enough, Enough! In his hands shall the Urim and Thummim remain and the holy ministry, and the keys of the evangelical priesthood, also, for an everlasting priesthood forever, even the patriarchal; for behold, he is the first patriarch in the last days. He shall sit in the great assembly and general council of patriarchs, and execute the will and commandment of God under the direction of the Ancient of Days; for he shall have his place and act in his station.