Into all the earth their measuring line has gone out, and to the extremity of the productive land their utterances.”​—Psalm 19:1, 4.

² Without speech, without words, without voice, Jehovah’s awesome created heavens declare his glory, day after day, night after night. Creation never ceases to declare God’s glory, and it is humbling to contemplate this silent testimony going into “all the earth” for all its inhabitants to see.

Paul shows this by quoting Psalm 19:4 and applying it to the Christian preaching work rather than to the silent witness of creation. He says: “Why, in fact, ‘into all the earth their sound went out, and to the extremities of the inhabited earth their utterances.’” (Romans 10:16, 18) Yes, even as the inanimate creation glorifies Jehovah, first-century Christians preached the good news of salvation everywhere and thus praised God in “all the earth.” In his letter to the Colossians, Paul also described how widely the good news had spread. He said that the good news had been preached “in all creation that is under heaven.”​—Colossians 1:23.