Bhagavad Gita 2.46

यावानर्थ उदपाने सर्वतः संप्लुतोदके।तावान्सर्वेषु वेदेषु ब्राह्मणस्य विजानतः॥

yāvānartha udapāne sarvataḥ saṃplutodake |tāvānsarveṣu vedeṣu brāhmaṇasya vijānataḥ ||

To the Brahmana who has known the Self, all the Vedas are of as much use as a reservoir of water would be in a place where there is a flood.

As a man can drink water from any side of a full tank, so the skilled theologian can extract from any scripture that which will serve their purpose.

Our plain-language meaning of this verse is waiting for scholar review.