Jehovah went before them by day in a pillar of cloud, to lead them the way, and by night in a pillar of fire

Learn more about the strange object described in Ex 13:21-22:  And Jehovah went before them by day in a pillar of cloud, to lead them the way, and by night in a pillar of fire, to give them light, that they might go by day and by night: the pillar of cloud by day, and the pillar of fire by night, departed not from before the people.

Audio Bible study on Acts 2:19-21

If you have ever puzzled over Acts 2:19-21 - And I will show wonders in the heaven above, And signs on the earth beneath; Blood, and fire, and vapor of smoke: The sun shall be turned into darkness, And the moon into blood, Before the day of the Lord come, That great and notable (day). And it shall be, that whosoever shall call on the name of the Lord shall be saved - this free audio Bible study may answer some of your questions.