Ecclesiastes 11:4-6

4One who watches the wind will not sow, and the one who looks at the clouds will not reap.

5Just as you don’t know the path of the wind, or how bones develop in the womb of a pregnant woman, so also you don’t know the work of God who makes everything.

6In the morning sow your seed, and at evening do not let your hand rest, because you don’t know which will succeed, whether one or the other, or if both of them will be equally good.