The term "thief" refers to a person who steals money or property from other people. The plural of "theif" is "theives." The term "robber" often refers to a thief who also physically harms or threatens the people he is stealing from.
* Jesus told a parable about a Samaritan man who took care of a Jewish man who had been attacked by robbers. The robbers had beaten the Jewish man and wounded him before stealing his money and clothing.
* In a figurative sense, the New Testament describes Satan as a thief who comes to steal, kill, and destroy. This means that Satan's plan is to try to get God's people to stop obeying him. If he succeeded in doing this Satan would be stealing from them the good things that God has planned for them.
* Jesus compared the suddenness of his return to the suddenness of a thief coming to steal from people. Just as a thief comes at a time when people are not expecting it, so Jesus will return at a time when people do not expect it.