We are…Christ’s ambassadors.@2 Corinthians 5:20

Mrs. Vokes, in A Selection of Missionary and Devotional Hymns, edited by Rev. J. Griffin, 1797.

Missionary Herald, in A Compilation of Genuine Church Music, second edition, by Joseph Funk, 1835 (🔊 pdf nwc).

Ye messengers of Christ,
His sovereign voice obey;
Arise and follow where He leads,
And peace attend your way.

The master whom ye serve,
Will needful strength bestow;
Depending on His promised aid,
With sacred courage go.

Mountains shall sink to plains,
And hell in vain oppose;
The cause is God’s and must prevail,
In spite of all His foes.

Go, spread a Savior’s name,
And tell His matchless grace,
To the most guilty and depraved
Of Adam’s numerous race.