40-41.
As Jesus washed His disciples' feet, so Baha'u'llah used sometimes to cook food and perform other lowly offices for His followers.

He was a servant of the servants, and gloried only in servitude, content to sleep on a bare floor if need be, to live on bread and water, or even, at times, on what He called "the divine nourishment, that is to say, hunger!" His perfect humility was seen in His profound reverence for nature, for human nature, and especially for the saints, prophets and martyrs.

To Him, all things spoke of God, from the meanest to the greatest.
His human personality had been chosen by God to become the Divine Mouthpiece and Pen.

It was not of His own will that He had assumed this position of unparalleled difficulty and hardship.

As Jesus said: "Father, if it be possible, let this cup pass from me," so Baha'u'llah said: "Had another exponent or speaker been found, We would not have made Ourself an object of censure, derision and calumnies on the part of the people" (Tablet of I_sh_raqat).