What does Job have to learn? He has not sinned, but he is not humble. Job's life is the Dark Night of the Soul. He is learning perfection.
The same is true of St. Paul, who was not sinning, except for zealously killing Christians, but he was loving the Lord. He had more of an enlightenment, rather than a conversion. His enlightenment was that God was the Trinity and Christ revealed Himself to him. He came into the Illumination Stage after his eyes were darkened, a sign of the Dark Night.
The Dark Night is the time we become, finally, humble. These ideas were given to me by a seminarian, who has been reflecting on Job, Paul and the Dark Night.
Job 38 Revised Standard Version Catholic Edition (RSVCE)
The Lord Answers Job
38 Then the Lord answered Job out of the whirlwind:
2 “Who is this that darkens counsel by words without knowledge?
3 Gird up your loins like a man,
I will question you, and you shall declare to me.
3 Gird up your loins like a man,
I will question you, and you shall declare to me.
4 “Where were you when I laid the foundation of the earth?
Tell me, if you have understanding.
5 Who determined its measurements—surely you know!
Or who stretched the line upon it?
6 On what were its bases sunk,
or who laid its cornerstone,
7 when the morning stars sang together,
and all the sons of God shouted for joy?
Tell me, if you have understanding.
5 Who determined its measurements—surely you know!
Or who stretched the line upon it?
6 On what were its bases sunk,
or who laid its cornerstone,
7 when the morning stars sang together,
and all the sons of God shouted for joy?
8 “Or who shut in the sea with doors,
when it burst forth from the womb;
9 when I made clouds its garment,
and thick darkness its swaddling band,
10 and prescribed bounds for it,
and set bars and doors,
11 and said, ‘Thus far shall you come, and no farther,
and here shall your proud waves be stayed’?
when it burst forth from the womb;
9 when I made clouds its garment,
and thick darkness its swaddling band,
10 and prescribed bounds for it,
and set bars and doors,
11 and said, ‘Thus far shall you come, and no farther,
and here shall your proud waves be stayed’?
12 “Have you commanded the morning since your days began,
and caused the dawn to know its place,
13 that it might take hold of the skirts of the earth,
and the wicked be shaken out of it?
14 It is changed like clay under the seal,
and it is dyed[a] like a garment.
15 From the wicked their light is withheld,
and their uplifted arm is broken.
and caused the dawn to know its place,
13 that it might take hold of the skirts of the earth,
and the wicked be shaken out of it?
14 It is changed like clay under the seal,
and it is dyed[a] like a garment.
15 From the wicked their light is withheld,
and their uplifted arm is broken.
16 “Have you entered into the springs of the sea,
or walked in the recesses of the deep?
17 Have the gates of death been revealed to you,
or have you seen the gates of deep darkness?
18 Have you comprehended the expanse of the earth?
Declare, if you know all this.
or walked in the recesses of the deep?
17 Have the gates of death been revealed to you,
or have you seen the gates of deep darkness?
18 Have you comprehended the expanse of the earth?
Declare, if you know all this.
19 “Where is the way to the dwelling of light,
and where is the place of darkness,
20 that you may take it to its territory
and that you may discern the paths to its home?
21 You know, for you were born then,
and the number of your days is great!
and where is the place of darkness,
20 that you may take it to its territory
and that you may discern the paths to its home?
21 You know, for you were born then,
and the number of your days is great!
22 “Have you entered the storehouses of the snow,
or have you seen the storehouses of the hail,
23 which I have reserved for the time of trouble,
for the day of battle and war?
24 What is the way to the place where the light is distributed,
or where the east wind is scattered upon the earth?
or have you seen the storehouses of the hail,
23 which I have reserved for the time of trouble,
for the day of battle and war?
24 What is the way to the place where the light is distributed,
or where the east wind is scattered upon the earth?
25 “Who has cleft a channel for the torrents of rain,
and a way for the thunderbolt,
26 to bring rain on a land where no man is,
on the desert in which there is no man;
27 to satisfy the waste and desolate land,
and to make the ground put forth grass?
and a way for the thunderbolt,
26 to bring rain on a land where no man is,
on the desert in which there is no man;
27 to satisfy the waste and desolate land,
and to make the ground put forth grass?
28 “Has the rain a father,
or who has begotten the drops of dew?
29 From whose womb did the ice come forth,
and who has given birth to the hoarfrost of heaven?
30 The waters become hard like stone,
and the face of the deep is frozen.
or who has begotten the drops of dew?
29 From whose womb did the ice come forth,
and who has given birth to the hoarfrost of heaven?
30 The waters become hard like stone,
and the face of the deep is frozen.
31 “Can you bind the chains of the Plei′ades,
or loose the cords of Orion?
32 Can you lead forth the Maz′zaroth in their season,
or can you guide the Bear with its children?
33 Do you know the ordinances of the heavens?
Can you establish their rule on the earth?
or loose the cords of Orion?
32 Can you lead forth the Maz′zaroth in their season,
or can you guide the Bear with its children?
33 Do you know the ordinances of the heavens?
Can you establish their rule on the earth?
34 “Can you lift up your voice to the clouds,
that a flood of waters may cover you?
35 Can you send forth lightnings, that they may go
and say to you, ‘Here we are’?
36 Who has put wisdom in the clouds,[b]
or given understanding to the mists?[c]
37 Who can number the clouds by wisdom?
Or who can tilt the waterskins of the heavens,
38 when the dust runs into a mass
and the clods cleave fast together?
that a flood of waters may cover you?
35 Can you send forth lightnings, that they may go
and say to you, ‘Here we are’?
36 Who has put wisdom in the clouds,[b]
or given understanding to the mists?[c]
37 Who can number the clouds by wisdom?
Or who can tilt the waterskins of the heavens,
38 when the dust runs into a mass
and the clods cleave fast together?
39 “Can you hunt the prey for the lion,
or satisfy the appetite of the young lions,
40 when they crouch in their dens,
or lie in wait in their covert?
41 Who provides for the raven its prey,
when its young ones cry to God,
and wander about for lack of food?
or satisfy the appetite of the young lions,
40 when they crouch in their dens,
or lie in wait in their covert?
41 Who provides for the raven its prey,
when its young ones cry to God,
and wander about for lack of food?