We know that Moses' Teachings are good if they are used as they were intended to be used.
For example, a person must realize that laws are not intended for people who have God's approval. Laws are intended for lawbreakers and rebels, for ungodly people and sinners, for those who think nothing is holy or sacred, for those who kill their fathers, their mothers, or other people.
Laws are intended for people involved in sexual sins, for homosexuals, for kidnappers, for liars, for those who lie when they take an oath, and for whatever else is against accurate teachings.
Moses' Teachings were intended to be used in agreement with the Good News that contains the glory of the blessed God. I was entrusted with that Good News.