Allah U has informed us that he sent Adam u and Eve down to Earth from The Trial Paradise. In that Paradise, He had given them a practical test through the tree that He had forbidden them from. However, Satan had caused them to slip and removed them from the former condition that they had been in. Allah U went on to explain to them that Iblis will be an enemy for them and for their children. He also assured them that He would send to them messages to guide and show them the straight path which would lead them to the Paradise that would be their eternal abode.
Suddenly, after this scene (Adam u and Eve and their descending to the Earth), the verses switch directly to addressing the Children of Israel, overtaking in mention of all the Messengers and nations that preceded them.
This is of the miraculous nature and greatness of the Holy Qur’an. Allah U has Willed to give the people of the Prophet Muhammad the best lesson through the succession of messages.