The fifth commandment is still in effect.
Matthew 15:4 God says, 'Honor your father and mother,' and 'Anyone who speaks disrespectfully of father or mother must be put to death.'
Exodus 20:12 "Honor your father and mother. Then you will live a long, full life in the land the LORD your God is giving you."
The first command that pertains to our relationships with people is the one that tells us how to treat our parents. We are to show honor to them, that means not only respect and submission, but also to take care of a person, to nurture and sustain them.
It isn't any surprise that God wants us to treat our parents with the highest regard after all he told us to love our enemies and those people that persecute us. So then even if our parents were very lousy, terrible parents then we are still obligated to love and respect them and to take care of their needs when they cannot.
Lord help me to love my parents and care for them as they grow older. Thank you for Christian parents.
You might like to read: Commands of Jesus blog series.