How do we know sanctification is true for believers?

Sanctification is a doctrine confirmed through Scripture, illustrating that believers are set apart by God for His purposes. In essence, believers are sanctified through God's election, through the redemptive work of Christ, and by the Holy Spirit's regenerative power. This sanctification grants them a new identity, where they are viewed as holy in Christ. The biblical basis for this belief can be seen in 1 Corinthians 1:30, which states that Christ has become for us wisdom, righteousness, sanctification, and redemption. Furthermore, as believers strive to grow in grace, their ongoing transformation is evidence of this sanctifying work in their lives, bearing fruit in holiness as they rely on God’s grace.