Some say 'us' is the Trinity. We don't accept that. Others say it is God speaking in the plural voice to denote the plentitude of His power and might. We don't like that explanation either. We believe is is God speaking of Himself and the angels. For a more detailed explanation, please see our article 'Questions and Answers About the Oneness of God' on Shelf 1 of the Apostolic Free Library on this website.