Why were they left to disagree

Verse 1
Why were they left to disagree?
Not to incourage sin,
Or prove th’ impossibility
Of constant peace within;
Not to confirm the daring lie
’Gainst Christ the Finisher,
Or countenance the men who cry
“There’s no perfection here.”

Verse 2
The fault, if fault indeed there was,
In one Apostle stood,
Eagerly partial in the cause
Of his own flesh and blood:
And God to teach us watchfulness,
Let the sharp contest rise,
That we may pray, and never cease
Till harbour’d in the skies.

Verse 3
Saviour, by thy permissive will
The fellow-labourers part,
The gracious counsels to fulfil
Of thy most loving heart:
They part, t’ advance the work Divine,
To spread thy victory,
And by the separation join
Ten thousand more to Thee.

Hymnal/Album: Originally titled: “‘The contention was so sharp between them, that they departed asunder.’—[Acts 15,] v. 39.” This hymn appears in the 1764 manuscript “MS Acts.” This manuscript is part of the collection of the Methodist Archive and Research Centre in The John Rylands Library, The University of Manchester (accession number MA 1977/555, Charles Wesley Notebooks Box 1). Accessed through the website of The Center for Studies in the Wesleyan Tradition, Duke Divinity School. Published in The Poetical Works of John and Charles Wesley, Collected and Arranged by G. Osborn, Vol. 12 (London: Wesleyan-Methodist Conference Office, 1871), page 310.
Publishing: Public Domain