Mercy does not need to be very discerning. Wherever there is a need, mercy responds immediately, regardless of the cause. Mercy does not wait to work out whether the cause is bad luck, poor stewardship or injustice, but responds to the human need need as soon as it appears.
Mercy is never wasted. If the cause of povery is injustice, mercy is still the best initial response. Dealing with injustice takes time, so the mercy assists the while justice is being established.
Mercy gives without asking too many questions and imposing to many requirements. It is happy for the recipients to give account to God for how they use the gifts they have received.
Mercy will sometimes be ripped off, but that does not matter because our blessing comes from giving, not from the righteousness of those who receive. Jesus was ripped off many times, so we should not be suprised that we experience the same.
Mercy helps people who have been messed up their own lives by poor economic stewardship. Mercy is right at the heart of what Christians are called to be. Mercy must triumph over judgement, so being merciful is more important than identifying bludgers.
On the other hand, Christians should be leaders in identifying and challenging in justice. We have the wisdom of God, so we would be the first to identify injustice. We have the boldness of the Spirit, so we should be shouting the loudest against injustice. If we had a fully developed prophetic ministry in the church, we would be zealous in exposing and challenging injustice.
God is just, so his people should never be blind to injustice. Unfortunately, the church has got rather good at supporting the status quo. Part of the problem is that we are not even certain on what injustice is anymore. Injustice is hard to find if you do not know what you are looking for.
Justice and mercy are not in conflict. They work together. Christians must get better at both.
The complete series can be found here.