Ecclesiastes is a wisdom book that questions the meaning of life and the value of human endeavors. The title 'Qoheleth' suggests one who assembles or teaches a congregation. Its canonicity was debated due to its skeptical tone but was accepted due to its orthodox conclusion of fearing God.
Ecclesiastes
Chapter 11
Cast your bread upon the waters. For, after a long time, you will find it again.
Give a portion to seven, and also to eight. For you do not know what evil will be upon the earth in the future.
If the clouds have been filled, they will pour forth rain upon the earth. If a tree falls to the south, or to the north, or wherever it falls, there will it remain.
Whoever observes the wind will not sow. And whoever considers the clouds will never reap.
Just as you do not know the way of the spirit, nor the way that bones are joined together in the womb of a pregnant woman, so you do not know the works of God, who is the Maker of all.
In the morning, sow your seed, and in the evening, do not let your hand cease. For you do not know which of them may rise up, this one or that one; and if both of them rise up together, so much the better for you.
Light is pleasant, and it is delightful for the eyes to see the sun.
If a man lives for many years, and if he rejoices in all of these, he must remember the many days of darkness, which, when they come, will accuse him of the past, and of the vanity of the present.
So then, rejoice, O young man, in your adolescence, and let your heart be in what is good during the days of your youth. And walk in the ways of your heart, and in the intentions of your eyes. And know that, for all these things, God will bring you to judgment.
Remove anger from your heart, and set aside evil from your flesh. For adolescence and pleasure are fleeting.