found that their system must be tested by the Bible, thoroughly and
in earnest--not merely for the purpose, as formerly, of determining
without any practical consequences of the determination, what is the
moral character of slavery--but, for the purpose of settling the point,
whether the institution shall stand or fall,--it is only, I say, since
the civilized world has been fast coming to claim that it shall be
decided by the Bible, and by no lower standard, whether slavery shall or
shall not exist--that your slaveholders have found it expedient to take
the ground, that slavery is not sin.

It probably has not occurred to you, how fairly and fully you might have
been stopped, upon the very threshold of your defence of slavery. The
only witness you have called to the stand to sustain your sinking cause,
is the Bible. But this is a witness, which slavery has itself impeached,
and of which, therefore, it is not entitled to avail itself. It is a
good rule in our civil courts, that a party is not permitted to impeach
his own witness; and it is but an inconsiderable variation of the letter
of this rule, and obviously no violation of its spirit and policy to
say, that no party is permitted to attempt to benefit his cause by a
witness whom he has himself impeached. Now, the slaveholder palpably
violates this rule, when he presumes to offer the Bible as a witness for
his cause:--for he has previously impeached it, by declaring, in his
slave system, that it is not to be believed--that its requirements are
not to be obeyed--that they are not even to be read (though the Bible
expressly directs that they shall be)--that concubinage shall be
substituted for the marriage it enjoins--and that its other provisions
for the happiness, and even the existence, of the social relations,
shall be trampled under foot. The scene, in which a lawyer should ask
the jury to believe what his witness is saying at one moment, and to
reject what he is saying at another, would be ludicrous enough. But what
more absurdity is there in it than that which the pro-slavery party are
guilty of, when they would have us deaf, whilst their witness is
testifying in favor of marriage and searching the Scriptures; and, all
ears, whilst that same witness is testifying, as they construe it, in
favor of slavery! No--before it will be competent for the American
slaveholder to appeal to the Bible for justification of his system, that
system must be so modified, as no long