Adam Clarke on John 4:34

My meat is to do the will of him that sent me - In these words, our blessed Lord teaches a lesson of zeal and earnestness to his apostles, and to all their successors in the Christian ministry. Let the salvation of souls lie nearer your heart than life itself. Let eating and drinking, labor and rest, reading, thinking, study, prayer, and all things, be directed to the accomplishment of this great work. Ministers of Jesus! imitate your Lord! Souls are perishing for lack of knowledge - God has given you the key of the kingdom, the knowledge of his word - O open unto them the gate of life! They are dropping by thousands into hell! O pluck the brands out of the burning!