B.G 7.03
मनुष्याणां सहस्रेषु कश्चिद् यतति सिद्धये। यततामपि सिद्धानां कश्चिन्मां वेत्ति तत्त्वतः ॥३॥
manuṣyāṇāṁ sahasreṣu kaścid yatati siddhaye। yatatāmapi siddhānāṁ kaścinmāṁ vetti tattvataḥ ॥3॥
Among thousands of men, one may strive for perfection; and even among those who strive, hardly one knows me in truth.
Gīta Bhāshya 7.03
The emphasis is on the rarity of the devotees of Lord Narayana with His accurate knowledge.
The rarity of such knowledge among humans is imphasized by 'manuṣyāṇām' verse.
Gīta Tātparya 7.03
The devotees of Lord Narayana are rare to find, and there is gradation among them based on their knowledge.
"Of the infinite living beings, only some strive for liberation; among them, only a few are liberated; and among the liberated, only a few wise clearly know Lord Hari perfectly, like Brahma, Rudra, and others. For others, liberation is as much as their knowledge of the supreme Lord Hari."
-stated thus in the Padma Purana.
"O great thinker! Among the millions, One who liberated and perfected, who is devoted to Lord Narayana and has a tranquil mind, is very rare."
- stated thus, in the Bhagavata Purana.
"All those who are liberated are devotees of Hari; among them, Brahma is indeed the chief. Indeed, the supreme devotee of Vishnu is considered the most revered of all living beings."
-stated thus in the 'sat-tatva' testimonial.