Is not my word like fire, declares the LORD, and like a hammer that breaks the rock in pieces? (Jeremiah 23:29)
"We live in a society where the value of words has been greatly diminished. We often talk about 'mere words.' Actually, words can bring life and death. Words are powerful. They can steal hope away, and they can give it back again. God's Word brings his resurrecting power.
The spoken word was not despised in Bible times. Rather, scholars suggest that ordinary words were highly valued. 'In Old Testament times, the word was regarded as being alive, and so was portrayed as being sent out of the heart (mind/brain,/mouth) of a living person, to leap to the goal at which it was directed. Then, when it arrived, it did the work of the speaker who had sent it forth, for it conveyed the power of the speaker to change the heart or the mind of the hearer of the word.'
True Christians place a very high value on words, even if we live in a world that prefers to value image. Apologist Ravi Zacharias is credited with saying, 'In the beginning was the Word, not video.' Jesus, the Son of God is described as the Word. God could hardly express His high view of words in a stronger way than that."
(Adrian Warnock quoting George Angus Fulton Knight, Raised with Christ: How the Resurrection Changes Everything)