Saint Gregory served as the Archbishop of Constantinople and was a fervent defender of Orthodox Christianity against Arianism. He is also renowned for his extensive theological works, which include over 240 letters, 500 poems, and 45 compositions.
Saint Gregory was a prominent figure at the Second Ecumenical Council, where he vigorously upheld the doctrine of the Holy Trinity.
What not to do on January 25:
It is forbidden to cut hair and nails.
Avoid arguments or insults towards family and friends.
Leaving the house after sunset is prohibited.
Folk signs and traditions for January 25:
Our ancestors followed several intriguing beliefs and omens on this day:
It is said that the weather in the afternoon predicts the conditions for the rest of the winter.

If an oak grove appears black, it signals either a snowstorm or a warming trend.
A heavy snowfall indicates that significant snow will last until early spring.
Additionally, loud chirping of sparrows is believed to forecast a thaw.
Weather forecast for January 25 in major cities of Ukraine:
Kiev: cloudy, with light rain and snow expected at night. No precipitation is anticipated later. Daytime temperature +3 °C, dropping to +1 °C at night.
Lviv: cloudy, with no precipitation. Daytime temperature will be +5 °C, and at night -1 °C.
Kharkiv: cloudy, with no precipitation. Daytime temperature +3°C, and +1°C at night.
Odessa: cloudy, with no precipitation. Daytime temperature +6°C, and +4°C at night.