Applied to sons whose duty it is to support their parents in old age and provide for their honourable burial.
The relationship between parent and child is beautifully summarised in the Talmudical saying: "There are three partners in the production of the human being, viz. the Holy One, blessed be He, the father and the mother. When men pay honour to their parents, God says, I ascribe it to them, as though I were in their midst and they honoured Me"
It is the duty of every man to honour his parent by supplying him with food and drink, clothing him, and leading him about .
A son can be compelled to support his father in his old age, even if he is so poor as to require to go and beg for the money