What does it mean that believers are saints?

In the New Testament, the term 'saints' encompasses all believers, not just a select few. Sanctification is the process by which believers are set apart by God's grace. Colossians 1:2 describes 'saints and faithful brethren' as one group, reinforcing that every believer is a saint due to their union with Christ and the redemptive work accomplished through Him. This identity is a result not of one's actions but of God's sovereign will and grace, highlighting the equality and shared spiritual status of all true Christians.