New Defender's Study Bible Notes
2:12 shall it be holy. The questions in Haggai 2:12-13 are dealing with the ceremonial laws of Moses (Haggai 2:11). One such group of laws stipulated that ritualistic cleanness is not transferable.
2:13 shall it be unclean. On the other hand, ceremonial uncleanness is easily transferred (see note on Haggai 2:12). The spiritual principle, obviously, is that sin in one’s life comes easily, by nature, but holiness comes only from the Lord and His work through faith.
2:16 pressfat. This is a vat for pressing grapes for wine.
2:17 blasting. A “blasting” is any plant disease which attacks suddenly.