Bible Verses About Salutations: Persons in haste excused from giving or receiving

Then Elisha said to Geichazi, "Get dressed for action, take my staff in your hand, and be on your way. If you meet anyone, don't greet him; if anyone greets you, don't answer; and lay my staff on the child's face."

Indeed, I tell you that many prophets and kings wanted to see the things you are seeing but did not see them, and to hear the things you are hearing but did not hear them.”