Do you ever find yourself willing to do something you know is wrong in order to get a benefit for yourself?
Listen to what Matthew 26:14-16 says.
Then Judas Iscariot, one of the twelve disciples, went to the leading priests and asked, "How much will you pay me to betray Jesus to you?" and they gave him thirty pieces of silver. From that time on, Judas began looking for an opportunity to betray Jesus.