Assurance of salvation

Assurance is a Protestant Christian doctrine that states that the inner witness of the Holy Spirit allows the justified disciple to know that he or she is saved. Based on the writings of St. Augustine of Hippo, assurance was historically a very important doctrine in Lutheranism and Calvinism, and remains a distinguishing doctrine of Wesleyanism and Methodism.

John Wesley believed that all Christians have a faith which implies an assurance of God's forgiving love, and that one would feel that assurance, or the "witness of the Spirit". This understanding is grounded in Paul's affirmation, "...ye have received the Spirit of adoption, whereby we cry Abba, Father. The same Spirit beareth witness with our spirits, that we are the children of God..." (Romans 8:15-16, Wesley's translation). This experience was mirrored for Wesley in his Aldersgate experience wherein he "knew" he was loved by God and that his sins were forgiven.

Early in his ministry Wesley had to defend his understanding of assurance. In 1738 Rev. Arthur Bedford had published a sermon in which he misquoted Wesley's teachings. Bedford had understood Wesley as saying that a Christian could be assured of persevering in a state of salvation, the Calvinist view.

In a letter dated September 28, 1738, Wesley wrote, "The assurance of which I alone speak I should not choose to call an assurance of salvation, but rather (with the Scriptures), the assurance of faith. . . . [This] is not the essence of faith, but a distinct gift of the Holy Ghost, whereby God shines upon his own work, and shows us that we are justified through faith in Christ...The 'full assurance of faith' (Hebrews 10.22) is 'neither more nor less than hope; or a conviction, wrought in us by the Holy Ghost, that we have a measure of the true faith in Christ..'"

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