As far as reputation is concerned, King Pṛthu is already known as the incarnation of the Supreme Personality of Godhead. The word ādi-rājam means “the original king.” The original king is Nārāyaṇa, or Lord Viṣṇu. People do not know that the original king, or Nārāyaṇa, is actually the protector of all living entities. As confirmed in the Vedas, eko bahūnāṁ yo vidadhāti kāmān ( Kaṭha Upaniṣad 2.2.13): the Supreme Personality of Godhead is maintaining all living entities. The king, or naradeva, is His representative. As such, the king’s duty is to personally supervise the distribution of wealth for the maintenance of all living entities. If he does so, he will be as reputable as Nārāyaṇa. As mentioned in this verse ( tad-yaśaḥ ), Pṛthu Mahārāja was actually carrying with him the reputation of the Supreme Personality of Godhead because he was actually reigning over the world in that capacity.