The priests had charge of the tabernacle, and of all that was in it; and they took special care of the Ark, which was the chief treasure of the nation. Now it was Samuel's duty to shut the wooden doors of the tabernacle at night, and sleep close to the great purple curtain and watch--a very trying thing for one so young in such a large, silent place. One night as he lay there asleep on his mat before the purple curtain, with the great lamp burnin