The Pillar of Cloud
The Pillar of Cloud was one of the manifestations of the presence of Yahweh in the Torah, the five books of Moses which appear at the beginning of the Bible.
According to Exodus, the pillar of cloud guided the Israelites by day during the Exodus from Egypt (circa the 18th Dynasty). The pillar of cloud is traditionally paired with the manifestation of the divine presence by night as the pillar of fire, which provided light. This was so they "could travel by day or night". It is said that God also appeared to Job in the form of a cloud as well, more specifically, a storm cloud when Job demanded God to show Himself.