Teach me how to do my duty

Teach me how to do my duty,
In the service of the Lord.
Then when time with me is over,
I'll receive the great reward.
And with Jesus Christ, my Savior,
I shall live in endless day.
Where my sorrows and my toiling
Shall be banished far away.

Source: The Sacred Harp: the best collection of sacred songs, hymns, odes, and anthems ever offered the singing public for general use (1991 rev.) #166