CC Ādi 2.65
ব্রহ্ম, আত্মা, ভগবান্—তিন তাঁর রূপ ॥ ৬৫ ॥
brahma, ātmā, bhagavān — tina tāṅra rūpa
Lord Kṛṣṇa Himself is the one undivided Absolute Truth, the ultimate reality. He manifests Himself in three features — as Brahman, Paramātmā and Bhagavān.
In the verse from Śrīmad-Bhāgavatam cited above (Bhāg. 1.2.11), the principal word, bhagavān, indicates the Personality of Godhead, and Brahman and Paramātmā are concomitants deduced from the Absolute Personality, as a government and its ministers are deductions from the supreme executive head. In other words, the principal truth is exhibited in three different phases. The Absolute Truth, the Personality of Godhead Śrī Kṛṣṇa (Bhagavān), is also known as Brahman and Paramātmā, although all these features are identical.