The only known reference to the Law of Will of God by Alice A. Bailey (AAB) in her voluminous writings and those given to her by Djwhal Khul (DK). Links on these pages of the Laws of Alice A. Bailey are to the online books at the Lucis Trust website.
What is a law?
… a law is but the spiritual impulse, incentive and life manifestation of that Being in which he lives and moves. A Treatise on White Magic , INTRODUCTORY REMARKS
A law is an expression or manifestation of force applied, under the power of thought, by a thinker or group of thinkers. Discipleship in the New Age, Vol. I , SECTION ONE – DISCIPLESHIP IN THE NEW AGE – Part 2
… a law is in reality the effect of the life of a greater entity as it encloses a lesser within its living processes. Esoteric Healing , Part Three – The Fundamental Laws of Healing
… a law is but the effect of the continued intelligent activity of the Life aspect as it works in conjunction with matter. Esoteric Psychology – Volume I , 5. The Rays in Cyclic Manifestation
A law is only an expression or manifestation of force, applied under the power of thought by a thinker or group of thinkers. Esoteric Psychology – Volume II , II. The Seven Laws of Soul or Group Life – Part 5
A law presupposes a superior being who, gifted with purpose, and aided by intelligence, is so coordinating his forces that a plan is being sequentially and steadily matured. A Treatise on White Magic
Quotes I found below:
Let us take up the matter first from the human standpoint, and study pralaya as it affects the Monad in incarnation. [ccxliii]44 There are five types of pralaya with which we may legitimately concern ourselves. We should notice first the fact that this condition is primarily one that concerns the relationship between Spirit and matter, in which a condition in substance is brought about through the action of the energising factor, the Spirit. It has, therefore, to do with the relation of the greater devas as They carry out Their work of form-building under the Law of Will of God to the lesser devas who represent living substance. It will be apparent to the student that it concerns the relation of the Holy Spirit to the Mother in the production of the Son, and then the relation of the Son to the Mother. If the ideas formulated in this treatise have been carefully followed, it will be obvious that in studying the question of pralaya, we are studying the relation (in time and space) of the positive energy of the solar Logos, the planetary Logos, and of Man to the substance through which alone manifestation is possible. Through this relation, existence on the objective planes can be brought about.
You are welcome to post your comments and understanding of this law.