Romans 10:9 (NIV) If you declare with your mouth, “Jesus is Lord,” and believe in your heart that God raised him from the dead, you will be saved.
The Sinner's Prayer (also called the Consecration Prayer and Salvation Prayer) is an evangelical Christian term referring to any prayer of repentance, prayed by individuals who feel convicted of the presence of sin in their lives and have the desire to form or renew a personal relationship with God through Jesus Christ. It is a popular phenomenon in evangelical circles. It is not intended as liturgical like a creed or a confiteor, but rather, is intended to be an act of initial conversion to Christianity. While some Christians see reciting the sinner's prayer as the moment defining one's salvation, others see it as a beginning step of one's lifelong faith journey.
It also may be prayed as an act of "re-commitment" for those who are already believers in the faith. Often, at the end of a worship service, in what is known as an altar call, a minister or other worship leader will invite those desiring to receive Christ (thus becoming born again) to repeat with him or her the words of some form of a sinner's prayer. It also is frequently found on printed gospel tracts, urging people to "repeat these words from the bottom of your heart".
The "Sinner’s Prayer" takes various forms, all of which have the same general thrust. Since it is considered a matter of one's personal will, it can be prayed silently, aloud, read from a suggested model, or repeated after someone modeling the prayer role. There is no formula of specific words considered essential, although it usually contains an admission of sin and a petition asking that Jesus enter into the person's heart (that is to say, the center of their life). The use of the sinner's prayer is common within some Protestant denominations, such as Baptist Churches and Methodist Churches, as well as in movements that span several denominations, including evangelical, fundamental, and charismatic Christianity. It has also been used, though not as widely, by some Anglicans,Lutherans, and Roman Catholics. It is sometimes uttered by Christians seeking redemption or reaffirming their faith in Christ during a crisis or disaster, when death may be imminent.