Matthew 7:18: A good tree cannot bring forth evil fruit

Evil I then must be
Who bring forth evil fruit:

Corrupt the fruit, corrupt the tree,
And most corrupt the root:
Whatever gift or grace
Thou hast on me bestow'd,
Lord, I with all my soul confess
That yet I am not good.
AVho teach that the most righteous man
Must sin in thought, and word, and deed.
As Satan's advocates maintain
That evil doth from good proceed,
And boldly give our God the lie.
And Truth Himself in Christ deny.