The concept of "Rizq" is one of the fundamental and frequently occurring concepts in the Quranic system of knowledge, which is manifested in the beautiful names of God, especially "Rizzaq", and is closely related to the monotheistic principles and the semantic system of the Quran. This research, with a descriptive-analytical approach and using the library documentation method, seeks to explain the conceptual relationships of the entity "Rizq" with other Quranic concepts with lexical accuracy and by considering the context of the verses, in the axes of collocation and selectional restriction. Based on the analysis, the concept of “Rizq” is categorized from the perspective of the subject (Rizq), the object (instances and objects of Rizq), and the recipient (Marzq), and its substitution relations are identified based on similar syntactic structures and conceptual relations of semantic inclusion and synonymy. The results of this research, in addition to accurately explaining the position of “Rizq” in the semantic network of the Quran in the axis of association, lead to the introduction and explanation of its alternative and parallel concepts in this heavenly book. In this regard, questions such as the precise definition of “Rizq”, the identity of “Rizq”, the principles of the obligation of God to provide for the sustenance of creatures, and the quality of the balance between divine destiny and the role of human will in acquiring it, have been explored.