CC Ādi 7.111

‘brahma’-śabde mukhya arthe kahe — ‘bhagavān’
cid-aiśvarya-paripūrṇa, anūrdhva-samāna
Synonyms: 
brahma — the Absolute Truth; śabde — by this word; mukhya — direct; arthe — meaning; kahe — says; bhagavān — the Supreme Personality of Godhead; cit-aiśvarya — spiritual opulence; paripūrṇa — full of; anūrdhva — unsurpassed by anyone; samāna — not equaled by anyone.
Translation: 
“According to direct understanding, the Absolute Truth is the Supreme Personality of Godhead, who has all spiritual opulences. No one can be equal to or greater than Him.
Purport: 

This statement by Śrī Caitanya Mahāprabhu is confirmed in Śrīmad-Bhāgavatam (1.2.11):

vadanti tat tattva-vidastattvaṁ yaj jñānam advayam
brahmeti paramātmeti
bhagavān iti śabdyate

“Learned transcendentalists who know the Absolute Truth call this nondual substance Brahman, Paramātmā or Bhagavān.” The Absolute Truth is ultimately understood as Bhagavān, partially understood as Paramātmā and vaguely understood as the impersonal Brahman. Bhagavān, or the Supreme Personality of Godhead, is opulent in all excellence; no one can be equal to or greater than Him. This is also confirmed in the Bhagavad-gītā (7.7), where the Lord says, mattaḥ parataraṁ nānyat kiñcid asti dhanañjaya: “O conqueror of wealth [Arjuna], there is no truth superior to Me.” There are many other verses which prove that the Absolute Truth in the ultimate sense is understood to be the Supreme Personality of Godhead, Kṛṣṇa.