Equivocation:
the use ofambiguous language to conceal the truth or to avoid committing oneself: prevarication.
"It was David who put the whole plan into action. Without his actions, nothing would have happened. He would be considered the first cause. He, however, would be culpable. Murder is a sin."
"In one sense, from the time of creation,
God is the first cause of all that follows.
But creating isn't a sin, so God is not culpable for the actions that follow."
"I'm not making a case either way. But I see people being critical of Calvinism who don't actually understand his arguments. What people believe or don't believe is up to them. But one should at least understand the argument they are critical of. That is often not the case with those critical of Calvin."
"
The equivocation fallacy refers to the use of an ambiguous word or phrase in more than one sense within the same argument. Because this change of meaning happens without warning, it renders the argument invalid or even misleading."
https://www.scribbr.com/fallacies/equivocation-fallacy/#:~:text=The equivocation fallacy refers to,argument invalid or even misleading.
Under Calvin's exhaustive divine determinism, God meticulously planned, predetermined and decreed every thought, intention, emotion and action of every entity in the universe for all time. According to Calvin, He ordained every evil thing from before creation began. According to Calvin, God has decreed all things and man can do nothing to change what God before creating decreed would be. According to Calvin, God as the supreme monarch is not subject to his own moral laws and because He cannot be punished by His creatures, He can simply decree Himself perfectly good, and by so decreeing that He is perfectly good, even though He has caused every evil - not by merely allowing it, but by meticulously planning and decreeing it - He thereby escapes culpability for all the evil He invented, planned and irresistibly decreed.
You say God
creating, i.e. the first cause of His creations evil developments, was not evil per se. However, His creating was preceded by a prior cause: His determination a priori to generate a creation in which He irresistibly ordained that His creatures would imagine, plan and perform abominations. And you say that since creating per se is not evil, God is not culpable for the planned and decreed downstream consequences of His creating.
In that case, David
looking out his window, i.e. the first cause of his adultery and murder, was not per se evil. He was not planning todo evil before he looked out the window. Therefore, by your logic, David is even less culpable than God for the downstream consequences of His looking out the window.
Professing Calvinists - I say
professing, because many don't actually agree with Calvin, so are not true Calvinists - use equivocation to conceal the truth they actually believe, or to avoid committing themselves to a systemic they do not truly believe.