In the beginning, guiding man during the Old Testament Age of Law was like guiding the life of a child. Earliest mankind was newly born of Jehovah; they were the Israelites. They had no understanding of how to revere God or how to live on earth. Which is to say, Jehovah created mankind, that is, He created Adam and Eve, but He did not give them the faculties to understand how to revere Jehovah or follow the laws of Jehovah on earth. Without the direct guidance of Jehovah, no one could know this directly, for in the beginning man did not possess such faculties. Man only knew that Jehovah was God, but as for how to revere Him, what kind of conduct could be called revering Him, with what kind of mind one was to revere Him, or what to offer up in reverence of Him, man had absolutely no idea. Man only knew how to enjoy that which could be enjoyed among all the things created by Jehovah, but as for what kind of life on earth was worthy of a creature of God, man had no inkling whatsoever. Without someone to instruct them, without someone to guide them personally, this mankind would never have led a life properly befitting humanity, but would only have been furtively held captive by Satan. Jehovah created mankind, that is to say, He created the ancestors of mankind, Eve and Adam, but He did not bestow upon them any further intellect or wisdom. Although they were already living on earth, they understood almost nothing. And so, Jehovah’s work in creating mankind was only half finished, and was far from complete. He had only formed a model of man from clay and given it His breath, but without bestowing unto man sufficient willingness to revere Him. In the beginning, man was not of a mind to revere Him, or to fear Him. Man only knew how to listen to His words but was ignorant of the basic knowledge for life on earth and of the proper rules of human life. And so, although Jehovah created man and woman and finished the project of seven days, He by no means completed the creation of man, for man was but a husk, and lacked the reality of being human. Man only knew that it was Jehovah who had created mankind, but he had no inkling of how to abide by the words or the laws of Jehovah. And so, after mankind came into being, the work of Jehovah was far from over. He still had to fully guide mankind to come before Him, so that they might be able to live together on earth and revere Him, and so that they might be able, with His guidance, to enter upon the right track of a normal human life on earth. Only in this way was the work that had been principally conducted under the name of Jehovah fully completed; that is, only in this way was Jehovah’s work of creating the world fully concluded. And so, having created mankind, He had to guide mankind’s life on earth for several thousand years, in order that mankind might be able to abide by His decrees and laws, and partake in all the activities of a normal human life on earth. Only then was Jehovah’s work fully complete.

—The Word, Vol. 1. The Appearance and Work of God. The Vision of God’s Work (3)