Haggai 2:12
If one bear holy flesh in the skirt of his garment, and with his skirt do touch bread, or pottage, or wine, or oil, or any meat, shall it be holy? And the priests answered and said, No. If one bear holy flesh in the skirt of his garment, and with his skirt do touch bread, or pottage, or wine, or oil, or any meat, shall it be holy? And the priests answered and said, No.
Haggai 2:12 is given as a parable. Its illustration is that contact with something holy does not impart holiness to other things, so holy flesh carried in the fold of a garment does not make bread, pottage, wine, oil, or any other food holy when the garment touches it. The holy flesh borne in the garment is the sacrifice, and the sacrifice represents Christ. Christ, so represented, was the foundation of the Jewish economy and is the One who makes possible the purification of man from sin.
The parable teaches that taking part in religious services does not make a sinner righteous. Nor does associating with God-fearing people make a sinner righteous. Instead the heart must be cleansed by the grace of Christ, received through faith and obedience to the truth.