Surprised I couldn't find "Blow Your Trumpet, Gabriel," which appears in Allen, 1867, and a fine arrangement for low voice in "Seventy Negro Spirituals," 1926, William Arms Fisher.

Lyr. Add: BLOW YOUR TRUMPET, GABRIEL

De talles' tree in Paradise,
De Christian call de tree of life;
And I hope dat trump might blow me home
To de new Jerusalem.
Blow your trumpet, Gabriel,
Blow louder, louder;
And I hope dat trump might blow me home
To de new Jerusalem.
2.
Paul and Silas, bound in jail,
Sing God's praise both night and day;
And I hope, etc.

As sung Port Royal Islands. Variant from Virginia:

2.
Paul and Silas, bound in jail,
Christians pray both night and day.
And I hope dat trump might blow me home
To my new Jerusalem.
So blow de trumpet, Gabriel,
Blow de trumpet louder,
And I hope dat trump might blow me home
To my new Jerusalem.

Score provided for both variants. Allen, William Francis, "Slave Songs of the United States," 1867, no. 4, p. 3.
http://docsouth.unc.edu/church/allen/allen.html

Lyr. Add: BLOW YOUR TRUMPET, GABRIEL
Arr. G. A. Grant-Schaefer, 1926

De talles' tree in Paradise,
De Christian call de tree of life,
An' I hope dat trump will blow me home
To my New Jerusalem.
De talles' tree in Paradise,
De Christian call de tree of life,
An' I hope dat trump will blow me home
To my New Jerusalem.

So blow de trumpet, Gabriel,
Blow de trumpet,
An' I hope dat trump will blow me home
To my New Jerusalem.

O Paul and Silas, bound in jail,
Sing God's praises night and day,
An' I hope dat trump will blow me home
To my New Jerusalem.
O Paul and Silas, bound in jail,
Sing God's praises night and day,
An' I hope dat trump will blow me home
To my New Jerusalem-

So blow de trumpet, Gabriel,
Blow de trumpet,
An' I hope dat trump will blow me home
To my New Jerusalem.

Pp. 8-11, full score for low voice. Edit. William Arms Fisher, "Seventy Negro Spirituals," Oliver Ditson Company, 1926.

Not in "African-American Heritage Hymnal," GIA Publ., Gen. Ed., Dolores Carpenter, 2001. Not in Cleveland and Nix, "Songs of Zion," Abingdon Press, 1981.