The verse "Shemaiah, and Joiarib, Jedaiah" from Nehemiah 12:6 is a list of names. Specifically, it's listing three priests (or families of priests) who returned from exile in Babylon to Jerusalem.

Here's a breakdown of what it signifies:

Context: Nehemiah 12 is primarily a genealogical record, tracing the lineage of priests and Levites who returned from the Babylonian exile under Zerubbabel and Jeshua. These individuals played crucial roles in re-establishing the religious practices and rebuilding the temple in Jerusalem.
Meaning: The verse simply states the names of three priestly families or individuals. Shemaiah, Joiarib, and Jedaiah were important figures in the priestly hierarchy of the time.
Significance: The inclusion of their names is significant because it:

Documents Historical Continuity: It shows the continuity of the priesthood from before the exile to after it. These families were likely descendants of priests who had served in the temple before its destruction.
Highlights the Re-establishment of Religious Order: The return of these priestly families was essential for restoring the proper worship and rituals in the rebuilt temple.
Provides Genealogical Information: It serves as a historical record for those tracing their lineage back to these families.
Illustrates the Fulfillment of Prophecy: The return from exile and the rebuilding of the temple were seen as a fulfillment of God's promises to restore Israel.

In short, the verse might seem simple, but it represents a vital aspect of the post-exilic rebuilding of Israel's religious and social structure. It's a nameplate on a significant chapter in Israel's history.