Studie
15 I have set the threatening sword against all their gates, that their heart may melt, and their stumblings be multiplied: ah! it is made as lightning, it is pointed for slaughter.
25 Don't go forth into the field, nor walk by the way; for the sword of the enemy, [and] terror, are on every side.
'Shouting, singing, and playing' relate to spiritual things.
(Odkazy: Arcana Coelestia 420; Psalms 27:6)