There is no speech nor language, where their voice is not heard.
Who can utter the mighty acts of Yahweh, or fully declare all his praise?
In the same way, the Spirit also helps our weaknesses, for we don't know how to pray as we ought. But the Spirit himself makes intercession for us with groanings which can't be uttered.
1 Thessalonians 1:8
For from you the word of the Lord has been declared, not only in Macedonia and Achaia, but also in every place your faith toward God has gone out; so that we need not to say anything.