It's to big to quoute so 'll just post a few highlights.
The name "Lazarus" is a transliteration of the Hebrew "Eleazar" (which means "God has helped"). The name was a common Hebrew word used for eleven different persons in the Old Testament
When one analyzes the parable, this Eleazar can be identified. He was one who must have had some kind of affinity with Abraham (or the Abrahamic covenant), for the parable places him in Abraham's bosom after death. But he was probably a Gentile. The phrase "desiring to be fed with the crumbs which fell from the rich man's table" was typical of Gentile identification (see Matthew 15:22–28). Even the phrase "laid at his gate" is reminiscent of the normal one used by Jews to denote the Gentile proselyte "Proselyte of the Gate." This Eleazar must also have been associated with stewardship because Christ gave the parable precisely for the reason of explaining what represents the true steward.
There was only one Eleazar in the historical part of the Bible that fits the description. He was a person associated with Abraham, he was a Gentile (not an ethnic part of the Abrahamic family), and a steward. He was Eleazar of Damascus, the chief steward of Abraham.
"And Abram said, 'Lord God, what wilt thou give me, seeing I go childless, and the steward of my house is this Eleazar [Lazarus] of Damascus and lo, one born in my house is mine heir.'"
The Rich Man was an actual son of Abraham. Christ had him calling Abraham his "father" (Luke 16:24)
Rich Man = Judah
The parable says that a "great gulf" [Greek: chasm] was fixed between the position of Abraham and Eleazar and that of the Rich Man [Judah]. What was this chasm? The Greek word means a deep ravine or valley — a great canyon with cliffs on each side. Its two sides were also "afar off"
Note the italicized word "pass." In all other occasions of its grammatical use in the New Testament, the word was used to denote a passage over water.
This would be the great rift valley between the highlands of Trans-Jordan and the hill country of Ephraim in which the River Jordan flows. This fault line is the greatest and longest visible chasm on earth. And what a spectacular sight it is! As one looks over the chasm he sees impressive cliffs on each side, a desert in its wastelands, and the River Jordan meandering in the center.
It divided the original land of promise given to Abraham from ordinary Gentile lands.
Recall also that the Rich Man was depicted as being in flames of judgment (verse 24). In this same rift valley were formerly located the cities of Sodom and Gomorrah which were "set forth for an example suffering the vengeance of eternal fire" (Jude 7).
The theme of Christ's narrative was true stewardship. Though Eleazar [Lazarus], Abraham's trusted steward, had disinherited himself from earthly rewards by his faithful obedience to Abraham's wishes, he was later to find himself (after death, when true inheritance comes) in Abraham's bosom. But the chief representative of Abraham's actual sons (Judah, the spiritual leader of all the Israelite tribes) remained East of Canaan as far as true inheritance was concerned. He had inherited all the physical blessings while in the flesh, but at death he was not allowed to pass the spiritual Jordan into the final Abrahamic inheritance.
The only Gospel to carry the parable of Lazarus and the Rich Man was Luke who was the companion of Paul, the apostle to the Gentiles. It showed a specific message that Gentiles could now inherit the promises to Abraham provided they were faithful as Eleazar had been. Yet Paul did not want the Gentiles to be conceited in their new relationship with God.