For these reasons, O king of kings, it behoveth thee not to say an untruth for the sake of land. Saying an untruth from affection for thy son, O king, hasten not to destruction, with all thy children and counsellors. The gods do not protect men, taking up clubs in their hands after the manner of herdsmen; unto those, however, they wish to protect, they grant intelligence. There is no doubt that one’s objects meet with success in proportion to the attention he directs to righteousness and morality.

In plain words: Vidura tells King Dhritarashtra the point of the story: do not lie about land out of love for your son, or you will destroy your children and advisers too. The gods do not guard people with sticks like cowherds. They protect people by giving them good sense. You succeed as much as you care about doing right.