Krsna is the original spiritual master of Lord Brahma, of Lord Siva, Narada, so many other authorities. There are twelve authorities, svayambhur naradah sambhuh - SB 6.3.20

Expressions researched:
"Kṛṣṇa is the original spiritual master of Lord Brahmā, of Lord Śiva, Nārada, so many other authorities. There are twelve authorities, svayambhur nāradaḥ śambhuḥ"

Lectures

Bhagavad-gita As It Is Lectures

We have to accept the sampradāya, disciplic succession, to receive real knowledge. So that sampradāya begins from Kṛṣṇa. Kṛṣṇa is the original spiritual master of Lord Brahmā, of Lord Śiva, Nārada, so many other authorities. There are twelve authorities: svayambhur nāradaḥ śambhuḥ . . . (SB 6.3.20). Svayambhu means Lord Brahmā; Nārada; and Śambhu, Lord Śiva; Kumāra; Kapila; Manu. They are all authorities.

721119 - Lecture BG 02.13 - Hyderabad

Ācāryavān puruṣo veda. Just like we accept our philosophy, Vaiṣṇava philosophy, or any Indian philosophy, they accept this paramparā, guru-paramparā. They accept it. Sampradāya. Just like we have got sampradāya, Rāmānuja-sampradāya, Madhva-sampradāya. So we have to accept the sampradāya, disciplic succession, to receive real knowledge.

So that sampradāya begins from Kṛṣṇa. Kṛṣṇa is the original spiritual master of Lord Brahmā, of Lord Śiva, Nārada, so many other authorities. There are twelve authorities: svayambhur nāradaḥ śambhuḥ . . . (SB 6.3.20). Svayambhu means Lord Brahmā; Nārada; and Śambhu, Lord Śiva; Kumāra; Kapila; Manu.

They are all authorities.