Esther 3:8 And Haman said unto king Ahasuerus, There is a certain people scattered abroad and dispersed among the people in all the provinces of thy kingdom; and their laws are diverse from all people; neither keep they the king's laws: therefore it is not for the king's profit to suffer them.
The diverse laws Haman is speaking about are not the normal laws of nations. There is one, and only one law that could differentiate the Jews in Mordecai’s day from all other people, and that is the law found in the fourth commandment of the decalogue. Here it is, for persons who may not be aware.
Exodus 20:8 Remember the sabbath day, to keep it holy. 9 Six days shalt thou labor, and do all thy work. 10 But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates. 11 For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it.
Many of the other laws of the Decalogue are still implemented across nations and states, some more, some less, so, when Haman declares “Their laws are diverse from all other people” he is primarily referring to the law of the Sabbath. which the world in general does not honor or obey.
Hebrews 8:10 For this is the covenant that I will make with the house of Israel after those days, saith the Lord; I will put my laws into their mind, and write them in their hearts: and I will be to them a God, and they shall be to me a people: 11 And they shall not teach every man his neighbor, and every man his brother, saying, Know the Lord: for all shall know me, from the least to the greatest.
May God add His blessing to the study of His word. “Good night” and God bless!