Luke 6:45: Love is the source of every good

Love is the source of every good,
Concupiscence of every sin.
The fountain by the stream is show'd,
By works the principle within:
Good actions a good heart bewray,
Which humble souls in vain would hide,
And passions vile themselves betray,
And outward speaks the inward pride.

The heart corrupt with all his care
An hypocrite cannot conceal,
The lip at last will make it bare,
Its secret rottenness reveal;
His wicked skill to lurk unknown
Cannot the voice of works suppress,
But forced he is by deeds to own
"Mine inward parts are wickedness."