50
Śrīmad-Bhāgavatam
[Canto 10, Ch. 1]
material world. Previous to the appearance of Lord Kṛṣṇa, this original Saṅkarṣaṇa will appear as Baladeva, just to please the Supreme Lord Kṛṣṇa in His transcendental pastimes.
PURPORT
Śrī Baladeva is the Supreme Personality of Godhead Himself. He is equal in supremacy to the Supreme Godhead, yet wherever Kṛṣṇa appears, Śrī Baladeva appears as His brother, sometimes elder and sometimes younger. When Kṛṣṇa appears, all His plenary expansions and other incarnations appear with Him. This is elaborately explained in  Caitanya-caritāmṛta . This time, Baladeva would appear before Kṛṣṇa as Kṛṣṇa's elder brother.
TEXT 25
विष्णोर्माया भगवती यया सम्मोहितं जगत् । आदिष्टा प्रभुणांशेन कार्यार्थे सम्भविष्यति ॥२५॥
viṣṇor māyā bhagavatī yayā sammohitaṁ jagat ādiṣṭā prabhuṇāṁśena kāryārthe sambhaviṣyati
viṣṇoh māyā —the potency of the Supreme Personality of Godhead, Viṣṇu;  bhagavatī —as good as Bhagavān and therefore known as Bhagavatī;  yayā —by whom;  sammohitaṁ —captivated;  jagat —all the worlds, both material and spiritual;  ādiṣṭā —being ordered;  prabhuṇā —by the master;  aṁśena —with her different potential factors;  kārya-arthe —for executing business;  sambhaviṣyati —would also appear.
TRANSLATION
The potency of the Lord, known as viṣṇu-māyā, who is as good as the Supreme Personality of Godhead, will also appear with Lord Kṛṣṇa. This potency, acting in different capacities, captivates all the worlds, both material and spiritual. At the request of her master, she will appear with her different potencies in order to execute the work of the Lord.