अत एव च नित्यत्वम् ॥ २९ ॥
ata eva ca nityatvam || 29 ||
ata-eva—From this very reason; ca—also; nityatvam—the eternity.
29. From this very reason also (results) the eternity (of the Vedas).
Since the objects are eternal, that is, gods etc. as types are eternal, the Vedic words are eternal. This establishes the eternal nature of the Vedas. The Vedas were not written by anybody. They are impersonal and eternal. The Rishis only discovered them but were not authors of the Vedic texts.
“By means of their past good deeds (the priests) attained the capacity to understand the Vedas; (then) they found them dwelling in the Rishis” (Rig-Veda 10.71.3),
which shows that the Vedas are eternal.