Proverbs 24:11-12 New Revised Standard Version (NRSV)
11 if you hold back from rescuing those taken away to death,
those who go staggering to the slaughter;
12 if you say, “Look, we did not know this”—
does not he who weighs the heart perceive it?
Does not he who keeps watch over your soul know it?
And will he not repay all according to their deeds?