Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ: whom he raised not up, if so be that the dead rise not.
Testified of God - i:e., concerning God, or 'against God;' the Greek preposition х kata (G2596)], with the genitive, implies, not direct antagonism (as the accusative), but indirect, to the dishonour of God: taking His name in vain, invoking it to attest a lie (Exodus 20:7). If forgery of a king's coin is penal, how much more forgery against the King of kings: miracles are His coin.
If so be - as they assert. It is not right to "talk deceitfully for" the glory of God (Job 13:7). 'Pious frauds' are dishonouring to the God of truth.