Christians don't have obligations, we have freedom.
As for honoring parents, that doesn't necessarily mean what too many people make it into. Remember when Mary and Joseph were looking for Jesus, when Jesus was back at the temple? He stated that His father is Father God. But at the same time, the Spirit of God compels us to love all, including even our enemies. How that works out, I don't always know, and I think it's something a person needs to listen to God on.