In his book, God's Big Picture, Vaughan Roberts argues that the whole Bible, from start to finish, has the unifying theme of God revealing his purpose to bring about his perfect rule. Roberts divides Biblical history into eight segments, the last seven showing "God's unfolding plan to restore his kingdom" (p22). Referring to Graeme Goldsworthy's book Gospel and Kingdom, he defines the kingdom of God as God's people living in God's place, under God's rule and blessing.