Luke 23:31 For if they do these things in a green tree, what shall be done in the dry?
I got a message today to keep chipping away at the dead wood. What is dead wood in Spiritual terms?

Dead wood no longer grows, it can fall to the ground and stay in that place till it turns to dust. Jesus was concerned before He went to the Cross what would happen after He went to Heaven. Anywhere in Scriptures Jesus had a concern, we should put that on top of our list of concerns.