'Greet' in the Bible

So David sent ten young men, and David said to the young men, "Go up to Carmel and go to Nabal; {you will greet him in my name}.

But a young man of the servants told Abigail, Nabal's wife, saying, "Look, David sent messengers from the desert to greet our master, but he addressed them angrily,

Toi sent Joram his son to King David {to greet him} and to congratulate him because he had fought against Hadadezer and defeated him; {for Hadadezer had often been at war with Toi}. {He brought with him} objects of silver and objects of gold and objects of bronze.

Then he said to Gehazi, "Gird up your loins and take my staff in your hand and go. If you meet anyone, you must not greet them; if anyone greets you, you must not answer them. You must put my staff on the face of the boy."