The Hebrew noun anan refers to a cloud or mass of clouds. Occurring approximately 87 times in the OT, it carries profound theological significance because clouds are consistently associated with the presence of God — the pillar of cloud in the wilderness, the cloud over Sinai, and the cloud filling the Temple at its dedication.
In Scripture, anan is far more than a meteorological phenomenon — it is a theophanic marker. God appears in the cloud: leading Israel through the wilderness, resting on Sinai when giving the Law, filling Solomon's Temple with His glory. The cloud both reveals and conceals — it mediates between holiness and sinful humanity. In the New Testament, Jesus ascends into a cloud and will return on clouds of glory (Acts 1:9; Revelation 1:7).