Also a precept is a law. And God's laws are just, as God is just. He provides so much help for daily living in how to act, and procedures to follow which are pleasing to Him, in the laws of the Bible. His laws do not change according to the world, or the ideas of the day. They are constant laws for then, now and all time.
Some people try to change the rules as often as they change their mind.
But God's rules do not change, and are not subject to change by us. God created us, and created the rules. He allows us the freedom to live by the rules, or not, but the laws do not change. And only by God, and his gift of salvation through Jesus, can our lives be saved. If we follow His laws, they save us from hurting ourselves and others.