We Reap What We Sow

Meantime I seek no sympathies, nor need;
The thorns which I have reaped are of the tree
I planted -- they have torn me, -- and I bleed.
I should have known what fruit would spring from such a seed.

-- From Childe Harold's Pilgrimage, by Lord Byron


And from the New Testament....

Don't be misled: No one makes a fool of God. What a person
plants, he will harvest. The person who plants selfishness, ignoring the needs of others --ignoring God! --harvests a  crop of weeds. All he'll have a show for his life is weeds! But the one plants in response to God, letting God's Spirit do the growth work in him, harvests a crop of real, eternal life.
Galatians 6:7 (MSG)