One of the prime components of any system of biblical study is the understanding that God has revealed himself, not only though his Word but throughout the ages in varying places. The pinnacle of all theophanies recorded in the Scriptures was God's revelation to Moses on Mount Sinai. Author Jeffrey J. Niehaus notes that this encounter was a theophany so significant that he employs the term 'Sinai theology' to convey his theme in his book. God at Sinai explores the meaning of this theophany throughout the Old Testament, both pre and post-Sinai (especially the prophets), as well as in the Psalms - and notes its significance for the whole of the New Testament. Niehaus also goes on to examine parallels in ancient Near Eastern traditions.