1 Corinthians 14:7-8

Bishops(i) 7 Moreouer, thynges without lyfe geuing sound, whether [it be] a pipe or an harpe, except they make a distinction in the soundes, howe shall it be knowen what is piped or harped 8 And also yf the trumpe geue an vncertayne sounde, who shall prepare him selfe to the warre