Final answer:
The Pharisees were the group of Jews who adhered to all 613 laws of Moses and promoted virtuous living among the entire Jewish community based on those laws.
Step-by-step explanation:
The group of Jews who strove to embody virtuous living as prescribed by Mosaic law were the Pharisees. They insisted that all Jews must follow not only the Ten Commandments but all of the 613 laws that Moses laid down in the Torah. In stark contrast to the Sadducees, who believed that only the priests needed to adhere to the full scope of Mosaic laws, the Pharisees extended this requirement to every member of the Jewish community. Their commitment to the law was not merely legalistic; it was a mark of their faith and anticipation of a coming messiah who would bring about the fulfillment of God's Covenant.