骨を埋めるほねをうずめる慣用句ことわざto devote (the rest of) one's life to (something)to do (something) for the rest of one's life
仏作って魂入れずほとけつくってたましいいれず慣用句ことわざmaking a Buddha statue but not putting a soul in itploughing the field and forgetting the seed