How do we know the doctrine of ministry is true?

The doctrine of ministry asserts that God calls individuals to serve in the church, a concept reinforced in Hebrews 5:4, which states that no one takes this honor upon themselves without being called by God. While an outward call is important, the inner calling of the Holy Spirit is equally significant. In every age, including our own, Christians must recognize that God is not confined to the use of ordained individuals; He can equip anyone for His work. Thus, the effectiveness of ministry depends on divine calling and the individual's faithfulness to Christ over mere ordination.