The biblical writers didn't need to say everything; they could assume some things. They didn't anticipate a day when even Jews and Christians would fall under influences of non-biblical religions, philosophies, and worldviews, to the extent that is now the case in our pluralistic culture and society.
Roger E. OlsonFor Christians ultimate reality is and can only be a personal, sovereign, holy, and loving God. But even some Christians, under extra-biblical and even anti-Christian cultural influences read the Bible as pointing to something not ultimate, such as material wealth, health, happiness, power, etc.
Roger E. OlsonIf the biblical writers were writing today they might spell out some things more clearly, given how easily even Christians fall into thinking in ways alien and foreign to the biblical story of God and creation.
Roger E. OlsonThere's nothing easy or simple or even entertaining (in our contemporary American sense of that word) in disciplining our minds to "see" reality through biblical lenses; it takes effort and time. But Christians who don't take that effort and time will inevitably succumb to some of the anti-biblical and anti-Christian messages that bombard us every day through advertising, entertainment, etc.
Roger E. Olson