What the Bible says about Full of the Knowledge of the Lord
(From Forerunner Commentary)
Man is proud of his powerful computers, satellites, modern scientific labs, and medical discoveries. In spite of this, he fights with nature and other men. Crime, drug abuse, sexual perversions, and all sorts of other evils escalate. The deaf and blind go unhealed. Man pollutes his air, water, and soil because he does not know how to manage a civilization. With all his technological advances, man cannot get along with his neighbor.
The earth being "full of the knowledge of the LORD" means far more than "everyone will go to the right church"! God's knowledge is vast; He knows how to make a civilization work—even a high-tech one! In the Millennium, man will be at peace. Nations, neighbors and even spouses will not fight. Cancer, diabetes, heart disease, blindness, and deafness will be eradicated. Eyeglasses and braces will be found only in museums. The deserts will produce bountiful harvests. The animal kingdom will peacefully co-exist with humanity. All this will be the result of an unprecedented explosion of knowledge in how to do things right!