The phrase "Act justly, love mercy, walk humbly" is inspired by Micah 6:8:
"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."
This verse from the Old Testament encapsulates key principles of justice, mercy, and humility, guiding believers to live with integrity and compassion.