Hannah brings Samuel to the temple to help Eli, the priest. When he grows older, he hears a voice calling his name. He thinks it's Eli, but Eli sends him back to bed. After the third time of asking Eli if it was him, Eli realizes that it's the Lord calling Samuel. Eli tells him to stay in bed and tell the Lord he is listening. The Lord gives Samuel a message about Eli. God tells Samuel what he's going to do. When Eli hears it, he realizes that God is right.
