Drawing from Genesis 1:1 and subsequent biblical revelation, Lane Tipton argues that before creating the visible world, the immutable triune God created a heavenly temple dwelling, filled that heavenly dwelling with the unchanging glory of his Spirit, and sanctified that heavenly dwelling as the realm of everlasting Sabbath Rest. Adam, as the created image of God and federal head of his posterity, could have advanced through perfect covenantal obedience beyond probation on the mountain of God in earthly Eden into the heavenly dwelling of God in Sabbath Rest. This God-centered and heaven-focused theological backdrop enriches our understanding of the person and work of Jesus Christ, as the second and last Adam in the covenant of grace, who in his humiliation and exaltation has opened the gates of heavenly paradise for his church.