God forgives us for our screwups when we turn back from them (i.e., repent). What must we then do? Forgive others. That includes those in the Body of Messiah who we think have “lied” to us about the Sabbath’s being changed, Day of Atonement’s being abolished, New Moon’s being nailed to the cross or the Torah’s being abrogated. Those who taught us these things may have been misled themselves or had misunderstood or misinterpreted teachings. Our job is to forgive.
That’s a key lesson Moshe (Moses) had for the second generation of Israel, who had to grow up outside the Promised Land because of the failings of the first generation in trusting every word that proceeds from the mouth of God. The Torah reading דברים Devarim (“words,” Deuteronomy 1:1-3:22) is the beginning of Moshe’s address near the end of his life, spanning most all the book.
