Ecclesiastes 11:4-6

He who observes the wind will not sow, And he who regards the clouds will not reap. As you do not know what is the way of the wind, Or how the bones grow in the womb of her who is with child, So you do not know the works of God who makes everything. In the morning sow your seed, And in the evening do not withhold your hand; For you do not know which will prosper, Either this or that, Or whether both alike will be good.