Whether the husband can on his own judgment put away his wife on account of fornication?

Objections

Objection 1 : It would seem that the husband can on his own judgment put away his wife on account of fornication. For when sentence has been pronounced by the judge, it is lawful to carry it out without any further judgment. But God, the just Judge, has pronounced this judgment, that a husband may put his wife away on account of fornication. Therefore no further judgment is required for this.
Objection 2 : Further, it is stated (Mt. 1:19) that Joseph . . . being a just man . . . "was minded to put" Mary "away privately." Therefore it would seem that a husband may privately pronounce a divorce without the judgment of the Church.
Objection 3 : Further, if after becoming cognizant of his wife's fornication a husband has marital intercourse with his wife, he forfeits the action which he had against the adulteress. Therefore the refusal of the marriage debt, which pertains to a divorce, ought to precede the judgment of the Church.
Objection 4 : Further, that which cannot be proved ought not to be submitted to the judgment of the Church. Now the crime of fornication cannot be proved, since "the eye of the adulterer observeth darkness" (Job 24:15). Therefore the divorce in question ought not to be made on the judgment of the Church.
Objection 5 : Further, accusation should be preceded by inscription [*Cf. SS, Question [33], Article [7]], whereby a person binds himself under the pain of retaliation, if he fails to bring proof. But this is impossible in this matter, because then, in every event the husband would obtain his end, whether he put his wife away, or his wife put him away. Therefore she ought not to be summoned by accusation to receive the judgment of the Church.
Objection 6 : Further, a man is more bound to his wife than to a stranger. Now a man ought not to refer to the Church the crime of another, even though he be a stranger, without previously admonishing him privately (Mt. 18:15). Much less therefore may the husband bring his wife's crime before the Church, unless he has previously rebuked her in private.