1 Chronicles 16:6
"Benaiah also and Jahaziel the priests with trumpets continually before the ark of the covenant of God."
Cross References (ranked by relevance)
2 Chronicles 13:12
And, behold, God himself is with us for our captain, and his priests with sounding trumpets to cry alarm against you. O children of Israel, fight ye not against the LORD God of your fathers; for ye shall not prosper.
Numbers 10:8
And the sons of Aaron, the priests, shall blow with the trumpets; and they shall be to you for an ordinance for ever throughout your generations.