Bava Batra 3B

בשנים. ואיתא להא ואיתא להא.

that it will be greater in years, meaning that the Second Temple will stand for a longer period of time than the First Temple. And the Talmud comments that this is true and that is true, meaning that the Second Temple was taller than the First Temple and also stood for a longer period of time.

וניעבדו תלתין אמין בבנין, ואידך ניעביד פרוכת! כי קאי תלתין אמהתא נמי ⁠– אגב תקרה ומעזיבה הוה קאי, בלא תקרה ומעזיבה ⁠– לא הוה קאי.

The Talmud asks: If so, if the Second Temple building was taller, then to separate between the Holy of Holies and the Sanctuary in the Second Temple they should have made a wall 30 cubits high and then made a curtain for the rest of the height, the 70-cubit difference in height between the First and Second Temples. The Talmud answers: This would have been impossible, as even when a 30-cubit wall that is 6 handbreadths thick stands, it is due to the ceiling and plaster which attaches it to the ceiling that it stands. But without a ceiling and plaster holding it in place, it does not stand.

וליעביד מה דאפשר בבנין, וליעביד אידך פרוכת! אמר אביי, גמירי: אי כולהו בבנין, אי כולהו בפרוכת. אי כולהו בבנין ⁠– ממקדש, אי כולהו בפרוכת ⁠– ממשכן.

The Talmud continues: But they should have made a wall as high as can possibly stand by itself, and then should have made a curtain for the rest of the height. Abaye said: The rabbis learned as a tradition that the partition separating the Holy of Holies from the Sanctuary should be built either entirely as a wall or entirely as a curtain. It should be built either entirely as a wall, as is learned from the First Temple, or it should be built entirely as a curtain, as is learned from the Tabernacle. At no time, however, was there a partition that combined a wall and a curtain.