Is the concept of justification/sanctification only taught by Paul?

Les explains that while he often emphasizes Paul's writings, the concept of justification and sanctification is not a Pauline concept. In the passage, Paul says believers were washed, sanctified, and justified. Les defines sanctification as being set apart for God's purposes and justification as God's judicial act whereby He declares the sinner just as if they had never sinned—cleansing the idolater, drunkard, and adulterer as though they had never done those things. Then Les directs listeners to John's Gospel, where the Lord Jesus Himself uses the term regarding the twelve or the eleven, showing the concept is also taught by Christ.