A Poison Tree

I was angry with my friend
I told my wrath my wrath did end
I was angry with my foe
I told it not my wrath did grow
I watered it in fears
Night and morning with my tears
And I sunned it with smiles
And with soft deceitful wiles
And it grew both day and night
Till it bore an apple bright
And my foe beheld it shine
And he knew that it was mine
And into my garden stole
When the night had veiled the pole
In the morning glad I see
My foe outstretched beneath the tree