CC Ādi 7.7

svayaṁ bhagavān kṛṣṇa ekale īśvara
advitīya, nandātmaja, rasika-śekhara
Word for word: 
svayam — Himself; bhagavān — the Supreme Personality of Godhead; kṛṣṇa — Lord Kṛṣṇa; ekale — the only one; īśvara — the supreme controller; advitīya — without a second; nanda-ātmaja — appeared as the son of Mahārāja Nanda; rasika — enjoyer of mellows; śekhara — summit.
Translation: 
Kṛṣṇa, the reservoir of all pleasure, is the Supreme Personality of Godhead Himself, the supreme controller. No one is greater than or equal to Śrī Kṛṣṇa, yet He appears as the son of Mahārāja Nanda.
Purport: 

In this verse Kavirāja Gosvāmī gives an accurate description of Lord Kṛṣṇa, the Supreme Personality of Godhead, by stating that although no one is equal to or greater than Him and He is the reservoir of all spiritual pleasure, He nevertheless appears as the son of Mahārāja Nanda and Yaśodāmayī.