Jesus said to them, "My food is to do the will of him who sent me, and to accomplish his work.
To finish his work - To “complete” or fully to do the work which he has commanded in regard to the salvation of men. It is his work to provide salvation, and his to redeem, and his to apply the salvation to the heart. Jesus came to do it by teaching, by his example, and by his death as an expiation for sin. And he shows us that “we” should be diligent. If he was so diligent for our welfare, if he bore fatigue and want to benefit us, then we should be diligent, also, in regard to our own salvation, and also in seeking the salvation of others.