Moses was the man God chose to free the people of Israel from Egyptian slavery, which had been going on for 430 years. The Almighty intended to make those people a great nation on earth. For this reason, He gave them His Laws and His statutes to obey and protect them from generation to generation.
“And I will give you shepherds according to My heart, who will feed you with knowledge and understanding.” (Jeremiah 3:15) Faith without sacrifice only serves to deceive. Sacrifice is what identifies, shows and proves the existence of faith. Without sacrifice, faith is blind.