The Hebrew word “qawwam” is best translated as measuring cord.
Therefore, it is better not to use the word voice
here, but, as the ESV footnote also shows, the words their measuring line.
We find the same wording in 1 Kings 7:23. There it is used for measuring the heavens’ circumference. This again underlines the set trajectory of what is seen in the heavens. Everything we see up there lets us discover oh so beautifully the order that the Creator has ordained from the beginning. How majestic is the Builder of the universe! All those heavenly bodies are faithful servants of God.
It is intriguing how the apostle Paul quotes the beginning of this verse in Romans 10:18 But I ask, have they not heard? Indeed, they have, for 'Their voice has gone out to all the earth, and their words to the ends of the world.'
Someone rightly explains this as follows: “This word from Psalm 19:1–14 relates to the voice of creation: it allows us to hear God’s honour. God does not want to stay hidden in his world. And that also applies to the Gospel: it sounds everywhere! It reaches man and wants to be heard and accepted.”
At the end of this verse, the sun appears. It is emphasized that this heavenly body has received a place from God. Implicitly this means a condemnation of the sun cult, which was common in many nations. And even Israel was not immune to this, as we learn from 2 Kings 23:11.
4 Their voice goes out through all the earth, and their words to the end of the world. In them he has set a tent for the sun,