The following story involving the great Talmid Chacham (Torah Scholar) and Tzadik (righteous person) Reb Yonatan Eibeshutz (c.1690-1764) author of "Yaarot Devash," shows the extent to which a few Jews were willing to go in their dedication to doing mitzvahs out of a love for Hashem.
R' Yonatan Eibeshutz was married in his late teens into a wealthy family. Reb Yonatan's father-in-law gave him three thousand gulden as a wedding present. The generous gift was meant to enable the outstanding scholar to study Torah undisturbed and realize his fullest potential.
As was the norm in Europe, it happened to be that the gentiles of R' Yonatan's town had very little tolerance for Jews and their customs. Appropriately, the gentiles decided to build a huge church right across the street from the synagogue that would overshadow and dwarf the Jews' place of worship and study. The Jews were enraged at having to face a church the moment they stepped out of their shul, but being a minority in both numbers and power, they could neither do nor say anything.
That is, all the Jews except Aryeh Leib, R' Yonatan's hot-headed, temperamental young chavruta (study partner). While the church was being built, Aryeh Leib seethed with anger at the audacity of the church officials. The constant flow of priests and nuns who looked at the Jews with contempt evoked a terrible fury in R' Aryeh Leib. He promised himself that someday he would avenge the insult.
R' Yonatan could not calm his hot-headed friend. Even R' Yonatan's insistence that any attempt at reprisal would jeopardize other Jews went unheeded. Aryeh Leib was adamant. When the building was finally completed, ceremonies were held for the inauguration of the church, and services began. Many gentiles moved into the neighborhood to be closer to the new church, and Aryeh Leib decided that he had had enough.
Late one night he entered the church and climbed the winding stairs to the steeple top, where there was a huge cross. Equipped with a hammer and chisel, he managed to break off and shatter the cross.
The noise woke up the resident priest, who raced up the stairs to investigate what had happened. Another priest joined him and when they caught sight of an "accursed Jew" in their church, they ran after him in hot pursuit. In his blind rush to get away from the scene of the crime, Aryeh Leib lost his way in the dimly lit halls of the church. The priests caught him and beat him mercilessly. They then decided to lock him up until the morning when they would decide how to deal with him further. In the morning, at a conclave with other church officials, it was decided to burn Aryeh Leib at the stake for desecrating their church.