This text comes from The Complete Poetical Works of John Greenleaf Whittier, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
Who gives and hides the giving hand,
Nor counts on favor, fame, or praise,
Shall find his smallest gift outweighs
The burden of the sea and land.
Who gives to whom hath naught been given,
His gift in need, though small indeed
As is the grass-blade’s wind-blown seed,
Is large as earth and rich as heaven.
Forget it not, O man, to whom
A gift shall fall, while yet on earth;
Yea, even to thy seven-fold birth
Recall it in the lives to come.
Who broods above a wrong in thought
Sins much; but greater sin is his
Who, fed and clothed with kindnesses,
Shall count the holy alms as naught.
Who dares to curse the hands that bless
Shall know of sin the deadliest cost;
The patience of the heavens is lost
Beholding man’s unthankfulness.
For he who breaks all laws may still
In Sivam’s mercy be forgiven;
But none cane save, in earth or heaven,
The wretch who answers good with ill.