1) God tells Abram to move to a new land (Gen. 12:1-3).
2) God appears to Abram and bequeaths the land to him (Gen. 12:7), and how far the land will stretch (Gen. 13:14-17).
3) God appears in a vision to Abram, telling him that he will have a son and innumerable descendants, detailing a bit of Abram's descendant's future, and makes a covenant with Abram (Gen. 15).
4) God tells Abram of his numerous future descendants, renames him Abraham, tells him of a new covenant and that the boys should be circumcised, renames Sarai Sarah, and tells him that he will have a son by Sarah named Isaac (Gen. 17:1-21).
5) God eats with Abraham (Gen. 18:1-15); then bargains with him for the future of Sodom and Gomorrah (Gen. 18:20-32).
6) God tells Abraham to obey Sarah and to get rid of Hagar and Ishmael; and that Ishmael, as Abraham's son, will be founder of a nation (Gen. 21:12-13).
7) God tells Abraham to bind Isaac, and offer him as a burnt offering. Seeing Abraham's willingness, God then gives Abraham a ram instead and vows to make Abraham's house numerous (Gen. 22:1-19).
The seventh revelation doesn't relate to the first six revelations as a group, but does relate to them each on an individual level. The first revelation sets a whole new course for Abram. Abram must leaves all of his family except his wife Sarai and his nephew Lot (Gen.12:4-5). Its relationship to revelation number seven is that they both entail the losing of family. The second revelation continues what the first one started, Abram is told of the land that is to be his descendants'. The beginning of the seventh revelation seems to contradict the tale of his descendants – how can Abram have descendants if he must sacrifice his heir? In the third revelation, God promises Abram a son from which he will have many descendants; but if Abraham is to sacrifice his heir, where will his descendants come from? The fourth revelation again mentions the all-important descendants. It also tests Abram to believe in God's word wholeheartedly. As a sign of a covenant with God, he must be willing to sacrifice a piece of his genitals. In the seventh revelation, this trust, sacrifice and covenant seem to have no bearing on God's trust in Abraham, He demands even further sacrifice. Abraham must give up that which he holds dear, and that which will cause all of the descendant-related revelations to come true. In the fifth revelation Abraham's disobedience, by bargaining with God, gives an unrealized hope of salvation for the people of Sodom and Gomorrah. In contrast, it is in strict obedience that there is realized salvation in the seventh revelation. Sarah's decree to banish Ishmael makes Abraham unhappy until the God's sixth revelation. God tells him that his son Ishmael will grow to have a nation of descendants. This nation of descendants has not been mentioned before and seems to spring from nowhere. In the seventh revelation, the nation of descendants promised through Isaac seems to be about to be cancelled, and the line rerouted through Ishmael. Luckily, Isaac is saved and there are now to be two lines of descendants. This whole cycle seems to be rather circular in reasoning and contrived. What's the point?