Matthew 10:12 KJV
And when ye come into an house, salute it.
Matthew 10:12, King James Version
In context
11 And into whatsoever city or town ye shall enter, enquire who in it is worthy; and there abide till ye go thence.
12 And when ye come into an house, salute it.
13 And if the house be worthy, let your peace come upon it: but if it be not worthy, let your peace return to you.