Luke 5:5: Their successors in vain

Their successors in vain
We labour'd all the night,
Nor could a single sinner gain,
Or cast our net aright:
The mist was not dispell'd.
The thick infernal gloom
While blind we all the errors held
Of dark apostate Rome.

But our redeeming Lord
Hath chased the clouds away,
And manifested by His word
The full immortal day:
By His own Spirit's light
We now the net let down,
And toil successful in the sight
Of yon eternal Sun.