An extract from a poem by Seamus Heaney, 'Weighing In', from The Spirit Level:

To refuse the other cheek. To cast the stone.
Not to do so some time, not to break with
The obedient one you hurt yourself into

Is to fail the hurt, the self, the ingrown rule.
Prophesy who struck thee! When soldiers mocked
Blindfolded Jesus and he didn't strike back

They were neither shamed nor edified, although
Something was made manifest - the power
Of power not exercised, of hope inferred

By the powerless forever. Still, for Jesus' sake,
Do me a favour, would you, just this once?
Prophesy, give scandal, cast the stone.

Two sides to every question, yes, yes, yes....
But every now and then, just weighing in
Is what it must come down to, and without

Any self-exculpation or self-pity.