4  Then I said, I have labored in ^avain, I have spent my strength for naught and in vain; surely my judgment is with the Lord, and my work with my God.

  51  Wherefore, do not spend money for that which is of no worth, nor your ^alabor for that which cannot satisfy. Hearken diligently unto me, and remember the words which I have spoken; and come unto the Holy One of Israel, and feast upon that which perisheth not, neither can be corrupted, and let your soul delight in fatness.