'Light' in the Bible

"A son naturally honors his father and a slave respects his master. If I am your father, where is my honor? If I am your master, where is my respect? The Lord who rules over all asks you this, you priests who make light of my name! But you reply, 'How have we made light of your name?'

"I wish that one of you would close the temple doors, so that you no longer would light useless fires on my altar. I am not pleased with you," says the Lord who rules over all, "and I will no longer accept an offering from you.

Do we not all have one father? Did not one God create us? Why do we betray one another, in this way making light of the covenant of our ancestors?