Not long ago I heard of a Jewish religious article that is placed near the exit to a house. When you leave the house, you touch this item and ask for God’s blessing. Is this the Mezuzah? If not, what is it? and what is the history behind it?
Yes, this is the mezuza, which is a commandment in Deut. 6:9. However, we like to think of it as being placed a the entrance to the house more than the exit - . Moreover, observant Jews place them on every doorway of the house (save the lavatories).Thanks for your question,
Rabbi Seinfeld
rabbiseinfeld.blogspot.com