Srimad-Bhagavatam: Canto 1 - Chapter 1 - Verse 16
परावरज्ञ: स ऋषि: कालेनाव्यक्तरंहसा ।युगधर्मव्यतिकरं प्राप्तं भुवि युगे युगे ॥ १६ ॥
parāvara-jñaḥ sa ṛṣiḥkālenāvyakta-raṁhasāyuga-dharma-vyatikaraṁprāptaṁ bhuvi yuge yuge
The great sage Vyāsadeva saw anomalies in the duties of the millennium. This happens on the earth in different ages, due to the unseen force of time.
The great sages like Vyāsadeva are liberated souls, and therefore they can see clearly past and future. Thus he could see the future anomalies in the Kali age, and accordingly he made arrangement for the people in general so that they can execute a progressive life in this age, which is full of darkness. The people in general in this Age of Kali are too much interested in matter, which is temporary. Because of ignorance they are unable to evaluate the assets of life and be enlightened in spiritual knowledge.