Not to make more of Job than is warranted on this thread, especially since I have never seen Job’s sinlessness mentioned in any discussion of Our Lady, but the POINT of the Book is Job’s righteousness, blamelessness, innocence and that even in affliction, Job did not sin.
So to answer your question, the Bible DOES say that Job is sinless.You leave out the most important phrase, ”Through/In all this Job did not sin.”
“All this” is very specific time reference, limited to Job’s trials at that time.
In the central scene (1:13ff), four messengers come to Job, announcing four disasters. The disasters (two natural, two inflicted by humans) strike from all directions: the Sabeans (15) come from the south (Sheba); the Chaldeans (17) from the north; the lightning (fire from God, 16) is from the storms that sweep in from the Mediterranean in the west; and the mighty wind (19) comes from the desert in the east. We see Job so overwhelmed by the calamities that he has no time to recover from one shock before the next messenger arrives.
Job’s reaction is not to blame natural events or human enemies (the LORD has taken away), not to forget God’s blessing (the LORD gave), not to close his eyes to reality (has taken), but to praise the Lord for both good and evil (21).
Yahweh’s confidence in Job has proved justified.
In saying that Job did not sin in what he said (2:10), the narrator means that Job has disproved the claim of Satan that he would sin with his lips by cursing God if he was physically struck down. Again, time specific.
Paul states of himself that he isPhilippians 3:5-6
…a Hebrew of Hebrews; as to the Law, a Pharisee; as to zeal, a persecutor of the church; as to the righteousness which is in the Law, found blameless.He continues by saying that all of his righteousness, and blamelessness, was skubalon—dung—when compared to the value of knowing Christ, and he further states that he abandoned his worthless righteousness for the righteousness of Christ gained through faith.
The scripture speaks of two kinds of righteousness—the righteousness of men, and the righteousness of God. The only one of any value is the latter.
Furthermore, in spite of his righteousness, and blamelessness before the law, Paul considered himself to be the “foremost of all sinners” (1 Tim 1:15).
Men being called righteous, and blameless does not mean that they are sinless; for as Paul tells us, ”All have sinned, and are (continuously) falling short of the Glory of God.” Amen.