Midrasch zu Mischlej 2:7

...What is meant by, “Turn to the Tzafon? Rabbi Chiya said, “(God) said to (the Jewish People) if you see (Esau) seeking to cause trouble for you don’t stand against him. Rather, hide yourselves from him until his time passes. Rabbi Yehuda Bar Shalom said, “Israel says to God, Master of the World, his father blessed him with “You shall live by the sword” and You are agreeing with him and telling us to hide. Where should we run? God says to them, “If you see that he is interacting with you, run to the Torah…”

In the third month (Exod. 19:1). Scripture says elsewhere in reference to this verse: He layeth up sound wisdom for the upright, He is a shield to them that walk in integrity (Prov. 2:7). R. Levi stated in the name of R. Samuel the son of Nahman: The Holy One, blessed be He, allowed nine hundred and eighty generations to pass by before giving the rite of circumcision to Abraham. (This was discussed previously in the portion Get thee out of the land.)¹³See Tanhuma, Lech Lecha 11. R. Jonathan stated in the name of R. Yosé the Galilean: The Holy One, blessed be He, had permitted nine hundred and seventy-four generations to pass by before giving the law to the generation of the wilderness. The law was given to the generation of the wilderness because it was upright. Three months after they had departed from Egypt He gave them the Torah, as it is said: In the third month. Therefore, He layeth up sound wisdom for the upright (Prov. 2:7).

After these things the word of the Lord came unto Abram (Gen. 15:1). Scripture says elsewhere in reference to this verse: He layeth up sound wisdom for the righteous; He is a shield to them that walk in integrity (Prov. 2:7). What is the meaning of He layeth up sound wisdom for the righteous? It means that the Holy One, blessed be He, stored the Torah away, prior to the creation of the world, until Abraham came to fulfill it, as it is said: Because that Abraham hearkened to My voice, and kept My charge, My commandments, My statutes, and My Laws (Gen. 26:5).