While Christ was 40 days in the wilderness of temptaion, hungry, He was tempted- And the devil said unto him, If thou be the Son of God, command this stone that it be made bread. And Jesus answered him, saying, It is written, That man shall not live by bread alone, but by every word of God. Luke 4:3,4
The children of Israel spent 40 years in the wildernss and He fed them with His bread of manna - And thou shalt remember all the way which the LORD thy God led thee these forty years in the wilderness, to humble thee, and to prove thee, to know what was in thine heart, whether thou wouldest keep his commandments, or no. And he humbled thee, and suffered thee to hunger, and fed thee with manna, which thou knewest not, neither did thy fathers know; that he might make thee know that man doth not live by bread only, but by everyword that proceedeth out of the mouth of the LORD doth man live. Deuteronomy 8:2,3
Give us this day our daily bread. Mark 6;11 And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he thatbelieveth on me shall never thirst. John 6:35 I am that bread of life. John 6:38