Justice is foundational to God's character and His kingdom.

Psalms 146:5, 7, 9 ESV

5 Blessed is he whose help is the God of Jacob,whose hope is in the Lord his God, 
7 who executes justice for the oppressed,who gives food to the hungry.The Lord sets the prisoners free; 
9 The Lord watches over the sojourners;he upholds the widow and the fatherless,but the way of the wicked he brings to ruin.

Micah 6:6-8 NIV

6 With what shall I come before the Lord and bow down before the exalted God?Shall I come before him with burnt offerings, with calves a year old? 7 Will the Lord be pleased with thousands of rams, with ten thousand rivers of olive oil?Shall I offer my firstborn for my transgression, the fruit of my body for the sin of my soul? 8 He has shown you, O mortal, what is good.And what does the Lord require of you? To act justly and to love mercy and to walk humbly with your God.

God's people are called to do justice as a reflection of His character.

Justice and righteousness are inward qualities that must be expressed through outward action.

Doing justice requires walking with God in humility and sharing His heart of merciful love.

Matthew 12:18-20 NIV

18 “Here is my servant whom I have chosen, the one I love, in whom I delight;I will put my Spirit on him, and he will proclaim justice to the nations. 19 He will not quarrel or cry out; no one will hear his voice in the streets. 20 A bruised reed he will not break, and a smoldering wick he will not snuff out, till he has brought justice through to victory.

Doing justice requires entering the world of the hurting and the oppressed.