Krsna is the Supreme Person, Bhagavan, and He is partially represented as Paramatma or impersonal Brahman

Expressions researched:
"He is the Supreme Person, Bhagavan, and He is partially represented as Paramatma or impersonal Brahman"

SB Canto 1

In such Vedic literatures as the Upaniṣads, the Lord has expressively been distinguished from the mundane conception of His existence. His identity being fully spiritual, His form, name, quality, and paraphernalia, etc., have been elaborately distinguished from matter, and therefore He is sometimes misunderstood by less intelligent persons as impersonal. But factually He is the Supreme Person, Bhagavān, and He is partially represented as Paramātmā or impersonal Brahman.

SB 1.10.24, Translation and Purport:

O dear friends, here is that very Personality of Godhead whose attractive and confidential pastimes are described in the confidential parts of Vedic literature by His great devotees. It is He only who creates, maintains and annihilates the material world and yet remains unaffected.

As it is stated in the Bhagavad-gītā, all the Vedic literatures are glorifying the greatness of Lord Śrī Kṛṣṇa. Here it is confirmed in the Bhāgavatam also. The Vedas are expanded by many branches and subbranches by great devotees and empowered incarnations of the Lord like Vyāsa, Nārada, Śukadeva Gosvāmī, the Kumāras, Kapila, Prahlāda, Janaka, Bali and Yamarāja, but in the Śrīmad-Bhāgavatam especially, the confidential parts of His activities are described by the confidential devotee Śukadeva Gosvāmī. In the Vedānta-sūtras or Upaniṣads there is only a hint of the confidential parts of His pastimes. In such Vedic literatures as the Upaniṣads, the Lord has expressively been distinguished from the mundane conception of His existence. His identity being fully spiritual, His form, name, quality, and paraphernalia, etc., have been elaborately distinguished from matter, and therefore He is sometimes misunderstood by less intelligent persons as impersonal. But factually He is the Supreme Person, Bhagavān, and He is partially represented as Paramātmā or impersonal Brahman.