The Finished Work is a doctrine that locates sanctification at the time of conversion, afterward the converted Christian progressively grows in grace. This is contrary to the doctrine of entire sanctification that locates complete sanctification in a definite "second work" of grace which is a necessary prerequisite to receive the baptism in the Holy Spirit. The term finished work arises from the aphorism "It's a Finished Work at Calvary", referring to both salvation and sanctification. Though the term is used within Pentecostal Christianity, it is not exclusively a Pentecostal doctrine.
The doctrine arose as one of the "new issues" in the early Pentecostal revivals in the United States. The dispute surrounding it was called the Finished Work Controversy which split the Pentecostal movement into Wesleyan and non-Wesleyan doctrinal orientations.