The Targum Pseudo-Jonathan describes a remarkable scene: "Jethro took burnt offerings and holy sacrifices before the Lord, and Aaron and all the elders of Israel came to eat bread with the father-in-law of Moses before the Lord; and Moses stood and ministered before them" (Exodus 18:12).
Three details redraw the picture. First, a recent convert from Midian offers burnt offerings and holy sacrifices — olah and shelamim. These are the categories the Torah will later formalize at Leviticus 1 and 3. Jethro, untrained in the coming priestly code, instinctively brings both categories: the offering entirely consumed by fire for God, and the offering whose meat is shared with a community.
Second, Aaron and "all the elders of Israel" — not just Moses's family — come to eat bread with Jethro. The Aramaic phrase "to eat bread before the Lord" signals a sacred meal. Israel's leadership publicly welcomes the convert at table.
Third, and most striking: Moses stood and ministered before them. The leader of the nation, the prophet who speaks to God face to face, waits on his father-in-law and the elders. The Targum models the ethic: honor flows from the greater to the guest.
The takeaway: a convert's first meal in Israel should be at the table of the elders, with the greatest among them serving. That was the pattern the Torah set, and the Talmud in Zevachim 116a takes it seriously as precedent.