"Always do for other people everything you want them to do for you. That is the meaning of Moses' teachings and the Prophets." Matthew 7:12
This verse has been named, "The Golden Rule" because of its great value. Something similar was said by the ancient Jews. The rabbi Hillel said to a young man who wanted to understand the whole law, "Whatever is hateful to you, do not do it to another." The Greeks, Romans and Confucius had similar sayings, which shows how people have been touched by the Spirit of God all through the ages as to what is right and good.
But what Jesus taught goes much farther than not harming people. He says to go out and do something for others that you would want done for you. It is not a passive saying, but an active one. God is actively doing good and so should we.