What the Bible says about Passed under the Rod
(From Forerunner Commentary)

Revelation 14:5 Verse 5 shows that the judgment of the 144,000 is complete; they have already "passed under the rod." Judgment is now on the house of spiritual Israel (I Peter 4:17). Christ comes back to reward the prophets and saints; their judgment will have been decided by the time He returns and changes them "in a moment, in the twinkling of an eye" (I Corinthians 15:52). He will sit in judgment only of those remaining alive (Revelation 11:18; 20:4-5). Staff Who Are the 144,000? Related Topics: 144,000 | Judgment on House of God | The 144,000 | Twinkling of an Eye