Ecclesiastes 11:5-7

International Standard Version

⁵ Just as you do not understand the way of the spirit
    in the^[a] womb of a pregnant mother,
so also you do not know
    what God is doing in everything he makes.
⁶ Sow your seed in the morning,
    and don’t stop working^[b] until evening,
since you don’t know which of your endeavors will do well,
    whether this one or that,
        or even if both will do equally well.