grace upon grace

we justice-loving types can have a hard time letting things go. if there's a point to be proven, we're probably the first to sign up. if there's a wrong to be righted, we can't imagine not trying everything in our power to do so. personally, i have a hard time giving an apology without also giving a self-defense. (conversely, sometimes it's tempting to apologize when someone else has wronged me - just for the sake of reconciliation.)
fighting for justice is well and good. but what about when we can't? or, is it possible there are times when we simply shouldn't? where is the line between putting into action the justice we know to be of God... and stepping aside and letting God enact God's own justice?
the words recorded by the prophet are wise, pairing together the imperatives "do justice" and "love mercy." oh yeah, and the third one: "walk humbly with your God." i guess maybe that's the how-to part.