Papal infallibility
Evangelical churches do not believe in papal infallibility for reasons similar to those of Methodist and Reformed Christians. Evangelicals believe that the Bible alone is infallible or inerrant. Most evangelical churches and ministries have statements of doctrine that explicitly say that the Bible, composed of the Hebrew Scriptures and the New Testament, is the sole rule for faith and practice. Most of these statements, however, are articles of faith that evangelicals affirm in a positive way, and contain no reference to the papacy or other beliefs that are not part of evangelical doctrine.
Evangelism
Throughout most of its history, Christianity has been spread evangelistically, though the extent of evangelism has varied significantly between Christian communities, and denominations. Evangelism, apologetics and apostolic ministry often go hand in hand. An ἀπόστολος ("apostolos") is literally "one who is ordered forth" and refers to the missionary calling of being ordered forth into the world by the initiation of God. An example of an interplay between Evangelism and Apologetics can be seen in the US when upon door to door Evangelism the prospect is an unbeliever and challenges the Evangelist wherein the Evangelist then follows into the role of the Apologist in defense of their faith with the hope that Evangelism may be restarted. Since missionaries often travel to areas or people groups where Jesus is not yet known, they frequently take on an evangelistic role. But the apostolic or missionary calling is not necessarily the same (and it is a misnomer and misinterpretation to equate them), as there are many who serve in missionary, church planting, and ministry development roles who have an apostolic calling or serve in an apostolic role but whose primary duty is not evangelism.