US-P18.060ab ।US-P18.060cd ॥
In plain words
If scriptural words failed to convey the real truth, the Veda itself would lose its validity as a means of knowledge. Since that is unacceptable, the correct understanding must be drawn from established tradition.
Close to the Sanskrit
If words were lacking in true reference, there would be invalidity of the Veda also; and that is not desired, therefore the proper understanding of this must be grasped from established validity.