'Ambassador' in the Bible

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

As a vessel of snow in a day of harvest, So is a faithful ambassador to those sending him, And the soul of his masters he refresheth.

I have heard a rumour from the LORD, and an ambassador is sent unto the heathen, saying, Gather ye together, and come against her, and rise up to the battle.

The vision of Obadiah. Thus saith the Lord GOD concerning Edom; We have heard a rumour from the LORD, and an ambassador is sent among the heathen, Arise ye, and let us rise up against her in battle.

But if not, [while] [the other] is still far away, he sends an ambassador [and] asks {for terms of} peace.

For which I am an ambassador in bonds: that therein I may speak boldly, as I ought to speak.

yet for love’s sake I prefer to appeal to you—since I am such a person as Paul, an old man, and now also a prisoner [for the sake] of Christ Jesus—