What does "until" mean in Matthew 23?
In Matthew 23, 'until' denotes a temporary period in which Israel would not see Jesus, because He would be taken from their midst and return to glory. This condition is not final; it points to a future end of their spiritual blindness.
Les explains that the 'until' in Matthew 23 is one of three 'untils' Jesus refers to. In this case, it means Israel would not see Him, because He would be moved from their midst and go back to glory. This temporary blindness is part of the mystery: Israel's blindness in part lasts only until the fullness of the Gentiles is brought in. When the body of Christ is complete and the church is removed, God will pick up where He left off with Israel, ending their spiritual blindness and restoring their relationship with Jehovah. So the 'until' is not final.