Jesus told His disciples that some demons can only be cast out by prayer ( Mark 9:29 29 And he said unto them, This kind can come out by nothing, save by prayer. ). Why is this? From our 2022 National Conference, Sinclair Ferguson considers how we must depend on the Lord as we seek to serve him. Explore our playlist of trustworthy answers to biblical and theological questions: https://www.youtube.com/playlist?list=PL30acyfm60fVTsKnDU9CizFZdv2GNwdbJ