اَلْعَدَد 10:8

وَبَنُو هَارُونَ ٱلْكَهَنَةُ يَضْرِبُونَ بِٱلْأَبْوَاقِ. فَتَكُونُ لَكُمْ فَرِيضَةً أَبَدِيَّةً فِي أَجْيَالِكُمْ.

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.