One word that's not in the Bible... retirement. The only place where the concept comes in perhaps was for the Levite priests for which the age where they could be a priest was from 25 to 50. Otherwise, the message is to "occupy til I come."
That is what I will do. Never stop working, for your life and in the name of Christ.
America has gone soft partly due to the idea of retirement which has a root of pleasing ourself.