Both Jews and Christians use the word Salam or Shalom as well. The Bible also contains other words and phrases that were in use and are often used today. To ask of someone's well-being is also treated as a kind of greeting. In Jesus' time there were some exclusive groups of Jews who exchanged greetings only with their own people. He encouraged his followers to be more open to others.
Some people today use greetings in a traditional manner just because others do.
As you enter the home, give it your greetings. Jesus taught many other things which can be found in the New Testament section of the Bible. If you would like a copy in the English language, please write to the address below.