The works of Ādi Śaṅkarācārya

Sanatsujātīyam

p. 216

p. 216

तदर्थयोगे च भवन्ति वेदाः ॥ २१ ॥

In plain words

And it is in being joined to that meaning that the Vedas come to be Vedas.

Close to the Sanskrit

And in connection with that purpose the Vedas come to be.