Vincent's NT Word Studies
4. Purse (ballantion). Used by Luke only. For money.Scrip (phran). For victuals. Rev., wallet.
Shoes. Not that they were to go unshod, but that they were not to carry a change of sandals. See Deut. xxix. 5; xxxiii. 25.
Salute no man. Oriental salutations are tedious and complicated. The command is suited to a rapid and temporary mission. Compare 2 Kings iv. 29. "These instructions were also intended to reprove another propensity which an Oriental can hardly resist, no matter how urgent his business. If he meets an acquaintance, he must stop and make an endless number of inquiries, and answer as many. If they come upon men making a bargain, or discussing any other matter, they must pause and intrude their own ideas, and enter keenly into the business, though it in nowise concerns them; and, more especially, an Oriental can never resist the temptation to assist when accounts are being settled or money counted out. The clink of coin has a positive fascination to them" (Thomson, "Land and Book").
Robertson's NT Word Studies
10:4 {Purse} (ballantion). Old word for money-bag, sometimes a javelin as if from ballw. Only in Luke in the N.T. (#10:4; 12:33; 22:35ff.). See #Lu 9:3; Mr 6:7f.; Mt 10:9f. for the other similar items. {Salute no man on the way} (medena kata ten hodon aspasesqe). First aorist (ingressive) middle subjunctive with medena. The peril of such wayside salutations was palaver and delay. The King's business required haste. Elisha's servant was not to tarry for salutations or salaams (#2Ki 4:29). These oriental greetings were tedious, complicated, and often meddlesome if others were present or engaged in a bargain.