Targum Pseudo-Jonathan turns Genesis 24:31 into a confession. Laban greets the servant with the warmest possible words — "Come in, thou blessed of the Lord" — and then lets slip a detail that the plain text of the Torah leaves hidden. He has, just now, "purified the house from strange worship" and cleared space for the camels.
Think about what that sentence admits. The house of Bethuel, the house that will produce Rivekah, the house that will one day send Jacob back among the covenant family, was a house of idols. Laban had to remove them before a guest of Abraham's could walk in.
The Targum is refusing a pious lie. Rivekah does not come from a sanctified lineage. She comes from a working compromise. And the moment Abraham's servant shows up at the door, the compromise has to go.
The Targum adds a second layer: Laban thought the servant was Abraham himself. That is why he cleaned so quickly. The arrival of a righteous person, in midrashic imagination, demands the removal of whatever would offend him. Laban did for Abraham's servant what the soul must do whenever the Divine Presence approaches — sweep the room first.
Rivekah's greatness is not that she grew up untouched. It is that she grew up inside that house and emerged anyway as the woman who would water ten camels for a stranger. Sometimes the truest righteousness is the one that had to push through an idol-filled hall to get to the well.