Remember, in the chronological reading of the Bible you will move back and forth between passages depending on the historical events taking place in each chapter. Job was probably written on or about the time Abraham lived on the earth. After reading Job we pick up the history with Genesis 12 and we are introduced to Abram, soon to be called Abraham.
Genesis 12 - God went from creating a world and populating it with people to signaling out one man, Abram, to be the father of a nation of people. Then God promised Abram the land on which he lives in Canaan. Abram's faith was tested when he had to go to Egypt because of a famine.
Genesis 13 - Abram and his nephew Lot had large families and flocks which were in jeopardy of conflict because of their living arrangements. Abram encouraged Lot to choose a land to live in and Lot chose the land around Sodom.
Genesis 14 - Lot and his family were taken captive by a neighboring nation. Abram and his servants rescued Lot. A unique priest, Melchizedek, blessed Abram. Abram rebuffed the wicked king of Sodom when he offered riches to Abram.
Genesis 15 - When God promised a son to Abram he believed the Lord and that was exactly what God wanted and He declared Abram to be righteous. God also promised Abram an innumerable multitude of descendants who would fill the land He promised to him.