1 Corinthians 4:2

Now it is required of stewards, that a man be found faithful.

2 Corinthians 2:17

I am; for I am not like most, trafficking in the word of God, but rather from a sincere heart, like a man of God, I speak in Christ, in the very presence of God.

2 Corinthians 5:20

On Christ's behalf, then, I come as ambassador. It is as though God was entreating you, through me, on Christ's behalf I beg you to be reconciled to God.

1 Timothy 1:12

And I am thankful to Christ Jesus our Lord, who has thus enabled me, that he accounted me faithful, and appointed me to his service,

2 Timothy 2:2

The teachings which you have heard from me, attested by many witnesses, deliver into the keeping of faithful men, who in their turn will be able to teach others also.

Treasury of Scripture Knowledge

Summary

A wicked messenger falleth into mischief: but a faithful ambassador is health.

Bible References

Wicked

2 Corinthians 2:17
I am; for I am not like most, trafficking in the word of God, but rather from a sincere heart, like a man of God, I speak in Christ, in the very presence of God.