What a dumb thing to ask! “Doing” and “Inheriting” don’t fit together! Think about it. If you inherit something, is there anything you have to do to inherit it? When I die, isn’t it up to me to assign my possessions to my kids? Can you manipulate the system to be born into the family into which you are born?
When this man came to Jesus and asked this question, I can imagine Jesus rolling his eyes. You don’t DO ANYTHING to inherit eternal life. It is offered to you as a free gift of God! It is laid out in front of you like a red carpet of Grace onto which you step by the power of the Holy Spirit. It is an inheritance that you inherit, not earn.
So if you’re a believer, live with the inheritance in mind. You are a child of the king! You are an heir into the throne room of God! You are saved by the Grace of Christ!
Do nothing – Inherit everything!
Go and live like that and stop being so silly!