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."
But work for the food which abideth unto eternal life ... And how, indeed, may men work for such food as that?  Let them study the Scriptures as lost men in a wilderness might study a map, searching them daily, as did the Bereans; let them seek and attend the corporate worship services, bringing their whole hearts into the public assemblies, and truly worshipping God in spirit and in truth; let them meditate upon the word of God day and night, honor its precepts, heed its warnings, observe its prohibitions, receive its promises, and trust it as God's word absolutely. Such verbs in the New Testament as study, strive, work, walk, sing, worship, pray, bear, love; give, keep, ask, seek, knock, and run - such verbs denote the type of spiritual activity included in the Saviour's command to "work for the food that perishes not."