2 John 1:10
If any one come to you and bring not this doctrine, do not receive him into the house, and greet him not;
2 John 1:11
for he who greets him partakes in his wicked works.
Carry neither purse nor scrip nor sandals, and salute no one on the way.
2 Kings 4:29
And he said to Gehazi, Gird up thy loins, and take my staff in thy hand, and go thy way. If thou meet any man, salute him not, and if any salute thee, answer him not again; and lay my staff upon the face of the lad.