What is this thing, morality?

jeremiah 22: 3, 15-16 -- "Thus saith the Lord: 'Do what is right and just. Rescue from the hand of the oppressor the one who hath been robbed. Do no wrong or violence to the alien, the fatherless, or the widow. and shed no innocent blood in this place. Did not your father have food and drink? He did what was right and just, so all went well with him. He defended the cause of the poor and needy, so all went well with him. Is that not what it means to know me?' declares the Lord."