Why should Christians care about social justice?

I'm speaking tonight at a youth group about social justice. Here's my list of 10 reasons why Christians should care about social justice. I'd be curious to hear your thoughts.

The texts that accompany them are meant to give a brief idea of where these ideas come from in Scripture - they're certainly not exhaustive! I'm planning to speak to them tonight (briefly!), so in a couple of cases the links aren't water-tight.

1. Stewardship – humans are created in God’s image and given dominion over the creation. We need to express that dominion in a way that honours God and reflects his character.
Genesis 1:26

2. God’s covenant with Israel showed great concern for the poor and needy. We’re not under the OT Law anymore, but it still gives us an idea of what God is concerned about.
Deuteronomy 15:11

3. Biblical worship includes justice and compassion towards the poor. Worship is not just singing, but offering our lives to God in the way that he has directed. Acts of worship without justice aren’t pleasing to God.
Isaiah 58:6-7

4. Biblical wisdom includes a concern for the poor and needy. Foolishness and ignoring wisdom does not honour God.
Proverbs 14:31; 29:7

5. Jesus cared for the poor and outcasts of society. Jesus repeatedly favoured the company of broken, poor and needy people – even when it scandalised nice ‘religious’ people.
Luke 7:22; 15:1

6. Jesus commanded his followers to love God and love our neighbours as ourselves. He makes it very clear that ‘neighbour’ includes those who are different and uncomfortable for us.
Luke 10:25-27, 36-37

7. Jesus shows us that to be truly human is to serve. We must avoid worldliness that urges us to pursue our own interests – career, security, comfort – at a cost to others, and instead considers the interests of others.
Philippians 2:3-8

8. God has called a people to himself so that we can do good works. We are not saved by good works, but for good works. Doing good works is part of the gift of salvation.
Ephesians 2:8-10; Titus 2:11-14

9. Being generous makes us more like God, helps us to trust him more and stores up real treasure for us.
2 Corinthians 8:9; 1 Tim 6:17-19

10. Justice is an important part of God’s kingdom. Although his kingdom hasn’t come in all its fullness, it has arrived in Spirit-filled believers. One day, there won’t be any more sin, oppression or injustice.
Isaiah 9:7; Revelation 22:1-2