The word of God is to be preached only by such as are sufficiently gifted,[1] and also duly approved and called to that office.[2]
1:
1 Timothy 3:2
1 Timothy 3:6
Ephesians 4:8-11
Hosea 4:6
Malachi 2:7
2 Corinthians 3:6
2:
Jeremiah 14:15
Romans 10:15
Hebrews 5:4
1 Corinthians 12:28-29
1 Timothy 3:10
1 Timothy 4:14
1 Timothy 5:22