Of the Rock that begat thee thou art unmindful, and hast forgotten God that formed thee. Of the Rock that begat thee - צור tsur, the first cause, the fountain of thy being. See the note on Deuteronomy 32:4.
Related Commentaries of Deuteronomy 32:18
Deuteronomy 32:18
18 Of the Rock that begat thee thou art unmindful, and hast forgotten God that formed thee.