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Protestant Christianity was born in the 16th century out of the Reformation in Germany led by Martin Luther, who challenged practices of the church of Rome and championed principles such as salvation by faith and the central authority of the Scriptures. From that first movement came many traditions, such as Lutherans, Calvinists, Baptists, Pentecostals and evangelicals in general, all with an emphasis on reading the Bible directly and on a personal relationship with God.
Today Protestantism includes Lutherans, Reformed churches, Anglicans, Methodists, Baptists, Pentecostals and many independent churches. Estimates of their number vary widely, because each survey counts different groups as Protestant. According to the Pew Research Center (a 2011 report using 2010 data), there were about 801 million Protestants in 2010, 37% of all Christians and 11.6% of the world’s population; some more recent estimates put the figure above 1 billion. In that data, the United States had the largest Protestant community, followed by Nigeria and China, where Protestant churches have grown remarkably in recent decades, and then by Brazil.
As the evangelical tradition this site itself comes from, Protestantism carries the conviction that faith is personal and that the Bible is open to everyone, with no required intermediaries. It is also a tradition marked by great internal diversity, with churches of very different styles, cultures and emphases around the world.
It is a fast-growing faith, especially in Africa and Asia, and it keeps adapting to new cultural settings without letting go of the center of its message: Jesus Christ.
The high point of the gathering is the exposition of the Bible in a sermon, usually longer than the Catholic homily, with the service arranged to prepare the congregation to hear and apply the Word.
Every believer is encouraged to read and study the Bible on their own, often with a daily reading plan, since direct access to the Scriptures is considered essential for spiritual growth.
Baptists, most Pentecostals and many evangelical churches baptize only those who can already profess faith consciously, usually by immersion (the person is fully dipped in water), as a public witness to the decision to follow Christ. Lutherans, Anglicans, Methodists and Reformed churches (Presbyterians) also baptize infants, usually by sprinkling or pouring water on the head.
The bread and wine (or grape juice) recall the death of Christ on the cross, but Protestant traditions understand the Supper in different ways: Lutherans believe Christ is truly present in the bread and wine; Reformed Christians (Presbyterians), that He is present spiritually; Baptists and many evangelicals see it as a memorial. All of them reject the Catholic view of the Mass as a sacrifice offered for sins.
Every Christian has direct access to God in prayer and does not depend on an ordained priest to mediate their relationship with Him, which lessens the distinction between clergy and laity found in other traditions.
Besides the main service, church life is often organized into cell groups, Bible study groups or Sunday school classes, where Sunday's preaching is explored more deeply and applied to everyday life.
A summary of the reformers' great emphases, which came to be presented as a list of five in the 20th century: sola scriptura (Scripture alone as infallible authority), sola fide (faith alone saves), sola gratia (grace alone, without human merit), solus Christus (Christ alone as mediator) and soli Deo gloria (glory to God alone).
The Bible is the only infallible authority for faith and practice, unlike the Catholic tradition, which also recognizes the Tradition of the Church, as interpreted by the magisterium (the official teaching of the pope and bishops), as an authority alongside the Scriptures.
Salvation is God's free gift, received by faith in Christ, with no good works contributing to earn it: works are the fruit of saving faith, not its cause.
Protestants do not see the pastor as a priest who mediates between God and the people: pastors and elders carry out teaching and leadership roles, but every believer has the same access to God.
The reformers denied that the bishop of Rome had supreme authority over the whole church, holding that Christ is the only head of the church and that each local community answers to Him through Scripture.
Unlike the Catholic dogma of transubstantiation (the belief that the substance of the bread and wine is changed into the body and blood of Christ), Protestant traditions reject this change, but they differ among themselves: Lutherans affirm the real presence of Christ in the Supper, Reformed Christians speak of a spiritual presence, and Baptists and many evangelicals understand it as a memorial.
The celebration of the resurrection of Christ, regarded as the high point of the Christian calendar among Protestants too, though with fewer liturgical elements and processions than in the Catholic and Orthodox traditions.
The celebration of the birth of Christ, marked by special services, cantatas and community outreach. The Protestant liturgical calendar is generally much simpler than the Catholic or Orthodox one, without the long calendar of saints.
Celebrated on October 31 in several Protestant traditions, especially Lutheran, in memory of Luther's posting of the 95 Theses in Wittenberg in 1517, the symbolic start of the Reformation.
The Sunday gathering shapes the week of the evangelical family, bringing together preaching, congregational worship and fellowship among the members of the local church.
Besides the service, many believers take part in weekly Bible studies in small groups or have a daily personal time of Bible reading and prayer, known as a devotional or quiet time.
Unlike fixed liturgies with written prayers, Protestant prayer is usually free and spoken in one's own words, both in public and in private, although liturgical traditions such as the Lutheran and Anglican keep formal prayers.
Protestantism ranges from more formal, liturgical traditions, such as Lutherans and Reformed churches, to more spontaneous and emotional expressions, such as Pentecostals and charismatics, each with its own style of worship and music.
Sharing the faith with others and seeking conversions is an expected part of ordinary Christian life, not a task reserved for specialists, reflecting the Protestant emphasis on each believer's personal responsibility.
Protestantism is estimated to be divided into thousands of denominations, with Pentecostals and charismatics standing out in numbers (the branch that has grown most in recent decades), along with Baptists, Reformed/Presbyterians, Methodists, Lutherans and Anglicans.
Protestants and Catholics share faith in the same Christ, in the Trinity and in the authority of the Bible as the Word of God, a common starting point for any respectful conversation about their differences.
Recognizing that Protestantism was born from a desire to reform the church from within, not from a rejection of historic Christianity, helps explain where they differ without hostility.
Reducing Catholicism to a caricature, as if Catholics worshipped Mary or the saints in the same way they worship God, when Catholic doctrine itself distinguishes veneration from worship.
Treating the enormous internal diversity of Protestantism (from Lutherans to Pentecostals) as if it were a single, uniform doctrinal bloc.
Instead of making assertions, ask how your Catholic or Orthodox conversation partner understands the authority of Tradition in relation to Scripture, and why the Supper or the Mass holds the place it does in their faith, before presenting the Protestant view.
Estimate: the religion's percentage in each country multiplied by the country's population.
+50
134.2M people
+79
52M people
+30
42.9M people
+39
37.4M people
+32
30.1M people
+17
29.3M people
+11
14.4M people
+16
10.5M people
+38
10M people