Lord Brahmā is the supreme prajā-pati. From him, marīcy-ādi, ṛṣayaḥ, all great ṛṣis, they were born. Then from them, other demigods—Indra, Candra, Varuṇa . . . so these devas, they are not like the asuras, disturbing elements. That is the difference between the asura and deva. The asura will create a situation which is very, very disturbing to the whole human society. And when there are so many asuras, disturbing elements, at that time the Supreme Personality of Godhead comes down, descends, in His incarnation. Paritrāṇāya sādhūnāṁ vināśāya ca duṣkṛtām (BG 4.8).
So Prahlāda Mahārāja, trying to pacify the Lord that, "This, Your incarnation, is for the benefit of Your servants, vidhi-karāḥ (SB 7.9.13)." Vidhi-karāḥ means servant. Vidhi-kṛt. Vidhi means law and order, and one who executes the law and order, they are called vidhi-karā. So all the demigods, they are appointed by the Supreme Lord to execute the law and order. Because this material world is a chaotic condition, therefore there is necessity of law and order. In the spiritual world there is no such thing. In spiritual world everyone knows that, "The Lord is our master, and we are all servants." That is spiritual world. And material world means that, "Why there should be one master? We are all master. Why you are searching after one God? Don't you see? All we are gods, loitering in the street, especially the poor god, daridra-nārāyaṇa." This is all material conception. Lord is one, Kṛṣṇa. Kṛṣṇa says, declares, in the Bhagavad-gītā, mattaḥ parataraṁ nānyat kiñcid asti dhanañjaya (BG 7.7): "There is no more superior authority than Me." In many places . . . Asamordhva. Asama, nobody can be equal with God, neither anybody can be higher than Him. That is God. So God is one. There cannot be two Gods. Then there is no meaning of God. Now they manufacture God. In every street, every lane, there is a God.