Bhagavad Gita · Chapter 2: The Path of Understanding
Bhagavad Gita 2.46
यावानर्थ उदपाने सर्वतः संप्लुतोदके ।
तावान्सर्वेषु वेदेषु ब्राह्मणस्य विजानतः ॥
yāvānartha udapāne sarvataḥ saṃplutodake | tāvānsarveṣu vedeṣu brāhmaṇasya vijānataḥ ||
As much use as there is for a small well when water is flooding everywhere, that much use is there in all the Vedas for a brahmin who truly knows.
Modern context
When the whole land is flooded with fresh water, nobody needs the village well. In the same way, for one who has realised the truth directly, the scriptures have done their work. Teachings and methods are means. Their purpose is to bring us to an understanding that no longer depends on them, and they deserve respect for exactly that.