3. holiness unto the Lord--that is, was consecrated to the service of Jehovah (Ex 19:5, 6). They thus answered to the motto on their high priest's breastplate, "Holiness to the Lord" (De 7:6; 14:2, 21).
      first-fruits of his increase--that is, of Jehovah's produce. As the first-fruits of the whole produce of the land were devoted to God (Ex 23:19; Nu 18:12, 13), so Israel was devoted to Him as the first-fruit and representative nation among all nations. So the spiritual Israel (Jas 1:18; Re 14:4).
      devour--carrying on the image of first-fruits which were eaten before the Lord by the priests as the Lord's representatives; all who ate (injured) Jehovah's first-fruits (Israel), contracted guilt: for example, Amalek, the Amorites, &c., were extirpated for their guilt towards Israel.
      shall come--rather, "came."

JFB.