A major difference between the gods of paganism and the God of the Judeo-Christian faith is that the latter is changeless. The author of Hebrews speaks of the third person of the Trinity as “the same yesterday and today and forever” (13:8). God can be counted on to always act in exactly the same way. For example, to obey his precepts is to enjoy his favor, to disobey them is to suffer the consequences. That is always true. In his second chapter, Peter writes that those who rejected the “living Stone” stumbled because that is “what they were destined for” (vs. 8). Note that they were not destined to stumble but destined to fulfill the divine order that those who disobey will stumble.
We accept so readily the law of nature that if you drop an object it falls. It has always been that way and we don’t really believe that next week it will be different. Since creation is an expression of a changeless God, its “laws” are dependable. It is held by many that apart from the westward growth of Christianity and its understanding of an unchanging God and therefore a stable universe there never could have been a scientific revolution. Acid inevitably turns litmus paper red. If someday God changed his mind and decided that from that point on it should turn green, our confidence in the scientific method would be undermined.
The bright side of God’s unchangeable nature is that he will never fail to bless those who honor him. His promises are steadfast and absolutely dependable. His presence is immediately available for those who come to him in genuine humility. We can read the book of Acts with the confidence that today’s Peter or Paul can enjoy the same intimacy with God as did those two early apostles. Those who originally received the “cornerstone” found in him their hearts desire. Since he is an unchangeable God, the same joyful experience awaits us today as we turn from “darkness into his wonderful light.” (2:9)