Mesirut Nefesh
The Gemara (Avodah Zarah 9.) teaches that the world will exist for six thousand years. The first two thousand years are called תהו (void) because there was no Torah in the world. The following two thousand years are called the years of Torah. The final two thousand years is the era of Moshiach because Moshiach will come then." The first two millennia of Torah began when Avraham Avinu was 52 years old. Why don’t the two thousand years start from the time Avraham recognized Hashem (which is at the age of 3, 40, or 48, as discussed above)? The Satmar Rebbe zt'l answered that when Avraham was 52, Nimrod threw him into the fiery furnace at Ur Kasdim because he refused to worship idols. The value of Torah is when it’s kept with mesirus nefesh. Avraham believed in Hashem earlier, but when he was 52 years old, he kept the Torah with mesirus nefesh. That’s the beginning of the two thousand years of Torah. During the Communist regime, it was difficult to find a mohel in Russia. One Russ