Summarizing the Scriptures, the [Westminster] Confession says here that God is not the author of sin; that is God does nothing sinful. Even those Christians who are not Calvinists must admit that God in some sense is the cause of sin, for he is the sole ultimate cause of everything. But God does not commit the sinful act, nor does he approve of it and reward it. Perhaps this illustration is faulty, as most illustrations are, but consider that God is the cause of my writing this book. Who would deny that God is the first or ultimate cause, since it was he who created mankind? But although God is the cause of his chapter, he is not its author. ...
The Scripture references show clearly that God controls the wills of men. ...
This does not mean that violence was done to the will of the creatures. It was not as if [in the case of Absalom and his men choosing a war plan] the men wanted to adopt Ahithophel's plan and were forced to follow Hushai against their desires. ... But it must be noted that God established psychological processes just as truly as he established physical processes.
This ties in with the next phrase, "nor is the liberty or contingency of second causes taken away, but rather established."
In the case of Absalom the secondary causes were the psychological proceses. The decision the men of Israel made was not made in opposition to those processes, nor even without them. God has established such processes for the purpose of accomplishing his will. He does not arrange things or control history apart from secondary causes.
To mention other examples, God decreed to bring the children of Israel out of Egypt; but they had to do the walking themselves. God decreed that Solomon should build the temple; but Solomon had to collect the materials. God dos not decree the end apart from the means. He decrees that the end shall be accomplished by means of the means. [Gordon H. Clark, What Do Presbyterians Believe? (Unicoi, TN: Trinity Foundation, 2001), 37-8]
None of these can be affirmed by Vincent Cheung and his drones, who claim that (1) God is the Author of sin, (2) God is the primary cause of everything, (3)Second causes are mere occasions, not actually and truly real processes in which God is in control but not directly working