It’s easy to mistake one as being about eternal things, and the other as only being about temporary things. In truth, both can be about eternal things.
In the well-known passage about eternal rewards Paul wrote to the Corinthians, actions with the wood, hay, and straw can have as much of a possibility of lasting for eternity as actions with the gold, silver, and precious stones. The difference is in the foundation on which we are building—Jesus Christ.