New Defender's Study Bible Notes
1:11 wax old. This revelation, originally given in the Psalms and now doubly verified, as it were, by being quoted in the New Testament, makes it clear that the universe is not evolving, but running down. This revelation anticipated the discovery of the Second Law of Thermodynamics, which it illustrates, by almost three thousand years. Also called the law of increasing entropy, this law is considered one of the most certain, best-proved laws of science, specifying as it does the observed fact that every thing in the universe has a tendency to run down or deteriorate and eventually die. The universe as a whole is heading toward an ultimate heat death, with all the stars burned out and the whole cosmos at a uniform low temperature.
1:12 thou art the same. Although His creation is now decaying, the Creator and His Word remain the same forever (Matthew 24:35; Hebrews 13:8; I Peter 1:24-25; etc.).