It is a violation of FIRST CAUSE ... it makes something OUTSIDE of God the FIRST CAUSE that causes the action of God (making God's Plan a "second cause"). That makes God dependent on something outside of Himself ... violating the DEFINITION of GOD and creating at best a "duality" of gods (the contra-biblical image of God and Satan as opposing equals) and at worst a pan-theistic view of "god" - with a little g - as one among many equal forces [like Zeus].
God must CAUSE, he cannot merely REACT.
The first cause argument is an assumption within theology.
God is the first cause when it comes to the original creation. It is assumed in theology that filters down into all the other areas theologians attempt to make but cannot prove from scripture with determining everything that comes to pass with evil/sin.
Remember the one who causes things to happen/occur by determining them is the one who is responsible for those things, the guilty party.
Yes we know many times God has said neither did I cause that evil to happen nor did it ever cross His mind for those things to happen.
Remember God delivers from evil and does not cause evil as taught in Calvinism and the creeds. The Bible/ God is in complete opposition to the divine decree as taught by Calvin and the creeds.
Matthew 6:9-13
“Pray, then, in this way:
‘Our Father who is in heaven,
Hallowed be Your name.
10 ‘Your kingdom come.
Your will be done,
On earth as it is in heaven.
11 ‘Give us this day [e]our daily bread.
12 ‘And forgive us our debts, as we also have forgiven our debtors.
13 ‘And do not lead us into temptation, but deliver us from evil. [For Yours is the kingdom and the power and the glory forever. Amen.
John 17:15
I do not ask that you take them out of the world, but that you keep them from the evil one.
2 Timothy 4:18
The Lord will rescue me from every evil deed, and will bring me safely to His heavenly kingdom; to Him be the glory forever and ever. Amen.
2 Thessalonians 3:2-3
And that we may be delivered from wicked and evil men. For not all have faith. But the Lord is faithful. He will establish you and guard you against the evil one.
James 1:13
When tempted, no one should say, "God is tempting me." For God cannot be tempted by evil, nor does He tempt anyone.
1 Chronicles 4:10
And Jabez called on the God of Israel, saying, Oh that thou wouldest bless me indeed, and enlarge my coast, and that thine hand might be with me, and that thou wouldest keep me from evil, that it may not grieve me! And God granted him that which he requested.
Psalm 121:7,8
The LORD shall preserve thee from all evil: he shall preserve thy soul…
Jeremiah 15:21
And I will deliver thee out of the hand of the wicked, and I will redeem thee out of the hand of the terrible.
Jeremiah 7:31
They have built the high places of Topheth in the Valley of Hinnom so they could burn their sons and daughters in the fire--something I never commanded, nor did it even enter My mind.
Jeremiah 19:5
They have built the high places of Baal to burn their children in the fire as offerings to Baal—something I did not command or mention, nor did it enter my mind.
Jeremiah 32:35
They have built the high places of Baal in the Valley of Hinnom to make their sons and daughters pass through the fire to Molech--something I never commanded them, nor had it ever entered My mind, that they should commit such an abomination and cause Judah to sin
hope this helps !!!