The oath/brit relationship
Bnai Adam had 6 commandments not 1. Noach through prophesy gained an even deeper vision of the commandments and understood 7 commandments. Avraham through prophesy gained an even deeper vision of the brit of Adam and kept all the commandments. Moshe the man of Elohim our Teacher what Avraham perceived Moshe publicly revealed as the depths of the commandment relationship vis a vis the brit of Adam and Noach. The Torah was revealed at Sinai because all nations of the world could accept or reject the Torah. The midrash specifically mentioned Esau and Ishmael because as descendants of Avraham, they not only rejected the Torah revelation but the essential brit of bnai Adam. This has scriptural precedent in Avraham's doubts if the nations kept the oath-brit of bnai Noach or not, hence he instructed her to tell to any one that asked that she was Avraham's sister.
What Avraham had a doubt by the time that Israel lived in Egypt have a large population the king that knew not Yosef had clearly rejected the bnai noach government of Yosef. The oath-brit of bnai noach entails not doing acts of sexual immodesty, theft or oppression to one's allied peoples. A brit being a formal alliance. A precedent for this examine the public Torah reading on Yom HaKippor?. The brit revelation of Sinai did not constitute as a new brit but rather a deep and historic revelation of the brit of bnai Adam. The first word of áøàùéú contains àù áøéú. Because bnai Adam profaned their oath-brit the floods destroyed the world and the Talmud coined the term "fear of heaven". The B'hag learned that each individual in every generation has an obligation to cut a brit. His precedent being King David's tikkun of 100 blessings. The prophet Havakuk understood that a blessing was in the family of an oath.
That's why R. Yochanan taught that a blessing requires The Name and Kingship to thereby distinguish a blessing from a praise. The Book of Ester understands Kingship as choice. The Gra learned that "the King" was a hint unto the Elohim. According to the 29th middah of R. Yose HaGalle? a hint means a numerical value. The numerical value of "the King" equals "Haman". The end of the 3rd chapter of Megilla, teaches that reading the Megilla requires Kavannah. The kavannah being when the name of Haman is pronounce to make a noise with the intent of wiping out the name, and when "the king" is read a person should have the intent to accept the Torah, because that's what happened on Purim! The bali tosafot learned Elohi Avraham as being as if kingship: first that otherwise the standing prayer lacks kingship and therefore does not qualify as a blessing, and secondly because kingship requires choice. Just as we pray on the festivals that Hashem chose us! The B'hag understood that if a person had intent to stand before a Safer Torah and pray the "standing prayer" that this person did a commandment from the Torah, though the nusoch of the 18 blessings is rabbinic the intent to cut a brit is one of the 613 commandments.
To cut a brit requires an oath. No oath no brit period. To make an oath a person has to stand before a Safer Torah. The prayer of the Anshe Knesset HaGadol? entailed standing before a Safer Torah. Where's the best place to pray, and what's in that place?! RaMBaM and Rashi dispute if a blessing is in the family of an oath from the Torah or from the rabbis. Depending upon which sheta that you learn R Akiva R Yochannan and Rash Lakish that a blessing qualifies as an oath. Hence prayer requires kavannah and a person who prays without kavannah is as if he did not pray. The simple meaning of the words do not help a person to fulfill his obligation because prayer requires kavannah