Mark 7:11

“But ye say, etc..] Your elders, doctors, and wise men, in opposition to God and Moses: if a man shall say to his father or his mother, it is Corban, that is to say, a gift; in the same manner is this word interpreted by Josephus, who speaking of some that call themselves Corban unto God, says f165 in the Greek tongue, dwron de touto semainei, “this signifies a gift”: now, according to the traditions of the elders, whoever made use of that word to his father or his mother, signifying thereby, that what they might have expected relief from at his hands, he had devoted it; or it was as if it was devoted to sacred uses; adding, by whatsoever thou mightest be profited by me, [he shall be free];…”

“See this passage explained in the notes at Matthew 15:1-20. Mark 7:1 Came from Jerusalem - Probably to observe his conduct, and to find matter of accusation against him. Mark 7:2 Defiled hands - The hands were considered defiled or polluted unless they were washed previous to every meal. Mark 7:3 Except they wash their hands oft - Our word “oft” means frequently, often. The Greek wore translated oft has been rendered various ways. Some have said that it means “up to the wrist” - unless they wash their hands up to the wrist. Others have said up to the elbow.” There is evidence that the Pharisees had some such foolish rule as this about washing, and it is likely that they practiced it…”

“7:11-12 But you say: The contrast with God’s law is emphatic—their tradition repudiated God’s command for people to honor their parents by providing for their needs. • ‘For I have vowed to give to God what I would have given to you’: The tradition said that people could sidestep their obligation to support their parents by dedicating some of their resources to God, thus disregarding and dishonoring their needy parents.”

“It is Corban: Rather, "Let it be a corban" a formula common among the Jews on such occasions; by which the Pharisees released a child from supporting his parents; and even deemed it sacrilege if he afterwards gave anything for their use. Mat 15:5, Mat 23:18; Ti1 5:4-8 Mark 7:13”