A quick visit to history

Reformed churches began in the same time as the Lutheran churches: in the sixteenth century in Europe. This is what the Reformation was all about: men like John Calvin, Martin Luther, John Knox, Martin Bucer, and many others rediscovered the Bible as the only authority for the church and Christian life.

During the Middle Ages the church had developed into an institute led by the clergy, while the church members (the laity) did not know the Bible. The church had substituted its tradition and the authority of the Pope for the authority of the Bible. It was the single organization that could give you entrance to heaven. It did so by giving its members grace through the sacraments, with the sacrament of the Mass at the center. In the Mass, the sacrifice of Jesus was (and still is) repeated and offered to God.
Jesus was no longer regarded as the only savior: the church recommends its members to pray to Mary, the mother of Jesus; it has elevated many people to sainthood and believes that those saints have extra credit with God, which believers can receive by praying to them. This helps believers as a compensation for their sins. Furthermore, good works were believed to help believers compensate for the sins they committed. Basically, they thought they received salvation by what they did, and Jesus was pushed to the background.

There had been earlier reform movements in the Roman Catholic church, led by John Wycliffe in England in the 14th century and John Hus in Bohemia (now the Czech Republic) in the 15th century. John Hus was executed as a heretic in 1415, but he prophesied that within 100 years God would raise up a man whose calls for reform would not suppressed.
When the Reformers began preaching what the Bible said they met the same resistance and were branded heretics. The church did not tolerate any aberration from the tradition. Many Reformed believers were imprisoned and executed by the Inquisition, a Roman Catholic committee for the investigation of heretics. Because the church rejected the 'new' teaching the Reformers had to leave the Roman Catholic church. They continued the church of Christ by re-establishing it on the only solid foundation: the Word of God alone.

Summarizing, we can say: the Reformed faith is not new but means a return to the Bible as the only authority.

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