Ecclesiastes 12:10-13

¹⁰The Preacher sought diligently to find out acceptable words, and a correct writing, even words of truth.

¹¹The words of the wise are as goads, and as nails firmly fastened, which have been given from one shepherd by agreement.

¹²And moreover, my son, guard yourself by means of them: of making many books there is no end; and much study is a weariness of the flesh.

¹³Hear the end of the matter, the sun: Fear God, and keep his commandments: for this is the whole man.