A Good Samaritan
You've broken down by the side of the road, and someone kind stops and helps fix your car. Or you're at the supermarket checkout and find you're just short of having the right money, and the person behind offers to make it up to the right amount. They're both good Samaritans, people who help out and maybe even rescue you, when you're having a hard time.The phrase goes back to a story Jesus told about a Jewish man who was robbed and beaten up, and then helped by a passing Samaritan. The story was shocking, because for Jewish people of the time, Samaritans were foreigners who were hated and distrusted. In Jesus' story, the people you think would be bound to help don't, and it's the despised foreigner who comes to the rescue...
A man was going down from Jerusalem to Jericho, when he fell into the hands of robbers. They stripped him of his clothes, beat him and went away, leaving him half dead. A priest happened to be going down the same road, and when he saw the man, he passed by on the other side. So too, a Levite, when he came to the place and saw him, passed by on the other side. But a Samaritan, as he travelled, came where the man was; and when he saw him, he took pity on him. He went to him and bandaged his wounds, pouring on oil and wine. Then he put the man on his own donkey, took him to an inn and took care of him. The next day he took out two silver coins and gave them to the innkeeper. "Look after him," he said, "and when I return, I will reimburse you for any extra expense you may have."
Luke 10:30-35