As you know, there are numerous problems with the Torah narrative.
For example, Abraham was married on his half-sister(Genesis 20:12), which is prohibited by the Torah (Leviticus 20:17, 20:19).
Jacob was married to sisters(Genesis 29:16), which is also prohibited (Leviticus 18:18)
Moses was, most likely, unintentional murderer. (Exodus 2:14)
Stuff like that, basically...
So, I was trying to figure out how is it possible, especially considering the fact that Written Torah is the ETERNAL law and should be applicable to every situation and at any given period of time.
For example, I explain Sarah's being barren by the fact that she was Abraham's sister, so according to the Torah they would die childless (Lev 20:20-21 seem to apply to all incestous relations). However, God has forgiven Abraham his sin for his obedience and faith.
I also found a passage in Deuteronomy. It is Deut 5:3. Let's take a look:
YLT Dt 5:2 Jehovah our God made with us a covenant in Horeb;
YLT Dt 5:3 not with our fathers hath Jehovah made this covenant, but with us; we--these--here to-day--all of us alive.
So, as you can see, it seems that our Patriarchs (even Moses) were not subjected to the Covenant in Horeb, because it was before it happened. This would explain why Abraham or Jacob was not punished for their sexual sins.
How does it fit into my circular timeline of the Torah.... I think it fits rather well, meaning that once we live in the time of the Deuteronomical curse, laws of the Torah are not really applicable to us. I mean, they are, but God judges us differently, then when He judges Israel in the desert when there was the Tabernacle and everything...
I hope this clarifies these issues.