Saying that an upper deity is mischievous? Even this Thunder Giant Dragon wouldn't dare, let alone the Holy Giant Dragons possibly daring to make fun of an upper deity like this.
The Valkyrie might be a Divine General under the command of the War God, sure, but she is an upper deity. Do not mention that the human lord in front of her is a Sword God; even if he kindled Divine Fire and became a deity, and went to the Divine Realm, he still wouldn't be qualified to visit the Valkyrie.
To call the Valkyrie mischievous and still claim not to blaspheme against the deity... If this doesn't count as blasphemy, then what does?
The human lord isn't afraid that one day while walking down the road, a spear might drop from the sky and give him a chilly piercing?
The reaction of the Holy Knights of the Valkyrie Temple is rather incompetent. The human lord is disrespecting your Valkyrie like this, and you don't even take out a spear to jab him?