'Thief' in the Bible

"I tell you the solemn truth, the one who does not enter the sheepfold by the door, but climbs in some other way, is a thief and a robber.

The thief comes only to steal and kill and destroy; I have come so that they may have life, and may have it abundantly.

(Now Judas said this not because he was concerned about the poor, but because he was a thief. As keeper of the money box, he used to steal what was put into it.)