What is the power of God? Who appoints Manu, Manuputra, Saptarishi, Gods etc. in their respective Manvantaras and what work do they do?


Shrimad Bhagwat Mahapuran (8.14.2)
Shri Shukdev ji says – Parikshit! It is God Himself who appoints Manu, Manuputra, Saptarishi, and Gods.
Shrimad Bhagwat Mahapuran (8.14.3)
Rajan! Manu etc. run the world system with the inspiration of the Yajnapurusha and other incarnations of God that I have described.
Shrimad Bhagwat Mahapuran (8.14.4)
At the end of Chaturyugi, when the Shrutis get destroyed due to the unpleasant circumstances of time, the Saptarishis again encounter them through their penance. Sanatan Dharma is protected only by those verses.
Shrimad Bhagwat Mahapuran (8.14.5)
Rajan! Inspired by God, all Manus, in their respective Manvantars, carefully perform the rituals of the four stages of complete religion on earth.
Shrimad Bhagwat Mahapuran (8.14.6)
Manuputras divide time and space in a manvantara(period of rule of manu) and perform the work of protecting the people and upholding religion. The sages, ancestors, ghosts humans, etc. who are associated with the Panch-Mahayagya and other rituals - the gods associated with them in that manavantar accepts the share of the yagya.
Shrimad Bhagwat Mahapuran (8.14.7)
Indra enjoys the immense wealth of Triloki given by God and takes care of the subjects. He also has the right to bring sufficient rain to the world.
Shrimad Bhagwat Mahapuran ( 8.14.8)
From age to age, the Lord preaches knowledge by assuming the form of Siddhas like Sanaka, preaches action by assuming the form of sages like Yagyavalkya, and preaches Yoga in the form of Yogeshwaras like Dattatreya, etc.
Shrimad Bhagwat Mahapuran (8.14.9)
In the form of Prajapatis like Marichi etc., he expands the creation, in the form of an emperor he kills the robbers, and in the form of time, by assuming various qualities like cold, hot, etc., he leads everyone towards destruction.
Shrimad Bhagwat Mahapuran (8.14.10)
The intellect of living beings is getting confused due to the illusion of name and form. That is why they sing the glory of God through many types of philosophical scriptures but are unable to know his real form.
Shrimad Bhagwat Mahapuran (8.14.11)
Parikshit! In this way, I have told you the extent of Mahakalpa and Avantara Kalpa. The scholars of Puranatattva have told fourteen Manvantaras in each Avantara Kalpa.