Malachi 1:12
But ye have profaned it, in that ye say, The table of the LORD is polluted; and the fruit thereof, even his meat, is contemptible. But ye have profaned it, in that ye say, The table of the LORD is polluted; and the fruit thereof, even his meat, is contemptible.
To call the table of the Lord polluted and its food, even his meat, contemptible is to profane what belongs to God and treat what is holy as common. That same profaning is done by withholding a suitable share and by treating the Lord's worship, table, and offerings as polluted and contemptible. In its setting that contempt appeared in weariness toward worship and in offering torn, lame, sick, and otherwise corrupt animals. God rejects such offerings and curses the deceiver who vows one thing but gives what is defective. The guilt is greater when a sound male animal was available and had been vowed, because God is a great King whose name is to be feared. Vows and offerings to God must therefore be honored rather than treated as a burden or given carelessly.
What God accepts must be without blemish and the best of the flocks and fields, given freely and without withholding a suitable share, for his blessing to rest on families and possessions. Applied to houses of worship, the verse condemns giving as little as possible and treating resources spent on a suitable house for God as wasted, since offerings for God should be the best people can give and not lame or grudging gifts. Stinted offerings and lame sacrifices show professed faith contradicted by selfish conduct and are hated by God.
The verse also condemns churches that claim to serve God while raising funds through feasting, gambling, and other worldly amusements, since offerings obtained by such corrupt means are unacceptable to God even when intended for church purposes. Neglecting prayer to entertain guests until all are too tired for devotion is likewise presenting God with a lame offering that profanes the Lord's table by treating its offering as contemptible.