The Mesora counts the amount of Pesukim in each Parsha.
In Parshas מקץ the Mesora counts not only the Pesukim but also the amount of (2025) words in the Parsha.
The Bnei Yisasschar quotes R.Z.H. Ziditchoiver zt”l who says:
"It is for a Remez for Chanukah.
The word נר= 250 x 8= 2,000
Add 25 כה כסליו equals 2,025"
The actual exact count of words is only 2022 and not 2025
ומצוה לישב
