All the tithes. Or, “the full tithes.” This implies that if the people paid tithe, they did not pay a full or honest tithe. Let us be sure that we do not make the same mistake as the people of Malachi’s day (cf. 1 Cor. 10:6-10). The Giver of all has a right to expect us to render Him an honest tithe, and also willing gifts as we are able.
Meat. Better, “food.”
Windows of heaven. Compare Gen. 7:11; 8:2. Not only will there be plenty of rain to remove all fear of drought, but through these openings, so to speak, the divine blessing will be poured out in great abundance (see Lev. 26:3-5).
Blessing. Not necessarily a material blessing, though that seems to be emphasized here (see on v. 11). For the material blessings God designed to bestow upon His people, see pp. 27, 28.