Please think about.
In the military the most elite soldiers has the hardest training.
They have specially designed training ground, their training is like hell on earth, and their drill Sergeant makes sure that at the end of the training they are the most elite soldiers in the world.
Please also think about.
If God would willed He could designed/ planned this earth like the life is in heaven, no sins, no disasters, no suffering, no hardships, yet God according to His wisdom He created this world like the training ground of the most elite soldiers and God is our everything even our “Drill Sergeant” for the reason that at the end of our training here on earth, in heaven we will be the most holy saints. – 1 Pet.2:9; You are the chosen generation, a royal priesthood, a holy nation, His own special people, …
According to John Salza: Page 119.
A sufficient grace has an operating effect only (empowering the will to act),
whereas an efficacious grace has both an operating and cooperating effect (applying the will to act).
When God wills a person to perform a salutary act (e.g., prayer, good works), He grants him the means (an efficacious grace) that infallibly produces the end (the act willed by God).
If God wills to permit a person to resist His grace, He grants him a sufficient, and not an efficacious, grace.
The Mystery of Predestination by John Salza, Page 113.
However, the Church teaches that God infused Adam with sufficient grace to resist temptation and to perform his duties with charity.
God, however, willed to permit Adam to reject His grace and to sin. End quote.
Furthermore, God not only had the design/ plan for the event of the “fall,” but He had the design/ plan for the event of our corruption (down to the minutest degree) and God corrupted us according to His foreordained design/ plan, for the reason to convert our sins into good.
CATHOLIC ENCYCLOPEDIA Divine Providence says.
His wisdom He so orders all events within the universe that the end for which it was created may be realized.
He directs all, even evil and sin itself, to the final end for which the universe was created.
Nor would God permit evil at all, unless He could draw good out of evil.
Evil, therefore, ministers to God’s design (St. Gregory the Great, op. cit., VI, xxxii in “P.L.”, End quote
When God wills to permit us an act of sin He gives us a sufficient grace (we always reject sufficient grace) to resist sin for the reason for to convert our sins into good and to make us saints.
In the case, when God wills not to permit us an act of sin He provides us an efficacious grace and we every time infallible resist the temptation of sin.
As we see above, with the provisions of sufficient and efficacious graces God perfectly Governs/ controls the entire human race.
The Divine will is cause of all things that happen, as Augustine says (De Trin. iii, 1 seqq.). Therefore all things are subject to fate. – Which is God’s Universal Salvific Will.