《左传·襄公·襄公九年》
而且在要挟之下举行的盟誓没有诚信可言，神灵不会降临，神灵所降临的只是有诚信的盟会。
且要盟无质，神弗临也，所临唯信。
Moreover, a vow made under duress is not to be trusted; the spirits will not come to those who do not keep faith; only in the case of a trustworthy alliance can we count upon their presence.