Micah 6:8 is a summary of how God wants us to live. To walk humbly with God is to know him intimately and to be attentive to what he desires and loves. And what does that consist of? The text says to ‘do justice and love mercy,’ which seem at first glance to be two different things, but they are not. The term for ‘mercy’ is the Hebrew word chesedh, God’s unconditional grace and compassion. The word for ‘justice’ is the Hebrew term mishpat. In Micah 6:8, ‘mishpat puts the emphasis on the action, chesedh puts it on the attitude [or motive] behind the action.’ To walk with God, then, we must do justice, out of merciful love.
– Tim Keller