heavenly voice; voice from heaven
Literal or figurative divine voice; often used in religious, mythological, or dramatic contexts.
See also: 天声
He claimed he heard a voice from heaven.
The priest conveyed the heavenly voice to the people.
off-the-record instructions; word from on high; influential person's opinion
Idiomatic use referring to unofficial guidance or a decision handed down by someone in power, often in political or organizational contexts.
It is said that the policy was decided by a word from on high.
The reporter wrote the article based on off-the-record instructions.
Compound of 天 (heaven) + の (possessive particle) + 声 (voice). The idiomatic sense likely developed from the idea of a divine or unquestionable pronouncement.