Little is known about his place of birth. Though the common assumption is that he was born in Budne, Podlaskie Voivodeship, it is known that there were over 140 places with a similar name on the territory of Belarus. Though what is known is that he was familiar was the Belarusian culture first-hand and dedicated a big part of his life to promoting it. The family he was born into was a minorBelarusian szlachta. Symon Budny originally identified himself as a Litvin, which then was the term used mostly to describe Belarusians.
Christology
Symon Budny was an early figure in the party in the Radical Reformation which utterly denied the divinity of Jesus Christ. Budny, along with the Greek Unitarian Jacobus Palaeologus, and the Hungarian Ferenc David, denied not just the pre-existence of Christ, which is what distinguished "Socinian" from "Arian" belief, but Budny, Paleologus and David went further and also denied invocation of Christ. Among these three Budny also denied the virgin birth. According to Wilbur it was his strong stance against the worship of and prayer to Christ that brought a separation with those like Marcin Czechowic who considered the views of Budny, Paleologus, and David as a revival of the Ebionite position and a form of Judaizing, and resulted in Budny's excommunication from the Minor Reformed Church of Poland, though subsequent Eastern European historians consider that in Budny's case it may have been on account of his note in the Belarusian New Testament stating that Jesus was Joseph's son, as much as the better known in the West letter to Fausto Sozzini to which Fausto Sozzini's answer is preserved in Volume II of the Bibliotheca Fratrum Polonorum printed by Sozzini's grandson in Amsterdam, 1668.
Budny and rabbinical commentary
For all that Budny was accused of "Judaizing" by Czechowic and Sozzini, and excommunicated from the Polish-Lithuanian-Belarusian Unitarian community, Budny was still regarded as a Christian adversary in the polemical work Chizzuk Emunah of Isaac Troky, who made counter-use of Budny's historical-critical biblical exegesis.
Political views
Budny supported the limited educated monarchy concept of the state, which would enable the development of the Sejm. Gregory Paul of Brzeziny and Palaeologus had been involved in a long heated exchange over the role of the Christian in the state since 1572, which had been kept unpublished. Though Marcin Czechowic in Dialogue XII of his Christian Colloquies, took Grzegorz Paweł z Brzezin's non-violent position. In 1580 Budny, then the leading minister among the socially conservative Lithuanian Brethren, published the whole correspondence, including Palaeologus' taunts of the pacifist position of the Ecclesia MinorPolish Brethren in his Defensio. The Polish brethren then asked Grzegorz Paweł z Brzezin to write a reply but he excused himself on the grounds of ill health, and the task fell to the then 41-year-old Fausto Sozzini, which he did and published a defence of conscientious objection and separation from the state in 1581.
Belarusian language
Budny was one of the first ideologists of the development the Belarusian culture in its native language, and had notable influence on the development of Belarusian national consciousness. In his "Cathechesis" Budny follows Francysk Skaryna in using native Belarusian speech to explain Christianity.
Polish language
However subsequently Budny surrendered and started to write in Polish. He tried to justify it by saying: He translated the Bible into Polish, known in Poland today as the Biblia Nieświeska, since it was translated 1568-1572 at Nesvizh. As changes were introduced in the printing a second edition of New Testament appeared in 1574. His former colleague Marcin Czechowic produced his own Polish New Testament in Lublin in 1577.
Works
He published the Old Testament and New Testament with commentaries and notes in Polish, which contained an early radical rationalist critique of the Gospels, and showed some knowledge of the Talmud.
CatechismThe work is written in the then common form of questions and answers, and consists of four sections: on 10 Amendments, on the symbol of belief, about praying to God and on the rituals.
O opravdanii greshnogo cheloveka pred Bogom. Budny is developing Protestant ideas, but also some of his Socinian preferences. He criticizes the conscientious objector wing of the Polish brethren such as Marcin Czechowic who considered that a Christian cannot take part in earthly power, has no rights of ownership of land and people in his property, and can not participate in war and use sword.
Note: proper names and places’ names are rendered in BGN/PCGN.