Don't work for the food which perishes, but for the food which remains to eternal life, which the Son of Man will give to you. For God the Father has sealed him."
that all which he hath given to me I should lose nothing, but should raise them up in that last day. And this is the will of him that sent me, that every one which sees the Son, and believes on him, shall have everlasting life: and I will raise him up in the last day ( John 6:39-40 ).