Ecclesiastes 11:4-6

4He who watches the wind [waiting for all conditions to be perfect] will not sow [seed], and he who looks at the clouds will not reap [a harvest].

5Just as you do not know the way and path of the wind or how the bones are formed in the womb of a pregnant woman, even so you do not know the activity of God who makes all things.

6Sow your seed in the morning and do not be idle with your hands in the evening, for you do not know whether morning or evening planting will succeed, whether this or that, or whether both alike will be good.