Korban' was a gift promised to God, yet retained by the son and still used by him. This was part of the religious 'Halakic' tradition that came after the law, and was used to avoid it's obligations. Jesus called the Pharisees hypocrites, play actors, because they pretended to be religious yet did not uphold God's law. This is a challenge to us today. To make sure that our Christian profession is backed up by our actions.
Older children have a responsibility to their elderly relatives, especially if they are infirm.
Even though there is a State Pension and the facility for residential care in some situations, this does not absolve a child from his or her responsibility to their parents. I know that a number of you here have had to make difficult decisions in looking after elderly relatives. In some cases this has involved feelings of guilt for putting them into residential care, whilst at the same time knowing this is the right decision. There has also been a financial cost for some to get the best home for their relatives. Younger people who are Christians are called to give honour to their parents, even if they are opposed to their beliefs.