en_tn_lite_do_not_use/psa/019/003.md

There is no speech or spoken words; their voice is not heard

These phrases express clearly that the first two verses were a metaphor. AT: "There is no real speech or spoken words; no one hears an actual voice with their ears"

their voice is not heard

Other translations read "where their voice is not heard," emphasizing that creation's "speech" is available everywhere.