Whether divination by drawing lots is unlawful?

Objections

Objection 1 : It would seem that divination by drawing lots is not unlawful, because a gloss of Augustine on Ps. 30:16, "My lots are in Thy hands," says: "It is not wrong to cast lots, for it is a means of ascertaining the divine will when a man is in doubt."
Objection 2 : There is, seemingly, nothing unlawful in the observances which the Scriptures relate as being practiced by holy men. Now both in the Old and in the New Testament we find holy men practicing the casting of lots. For it is related (Jos. 7:14, sqq.) that Josue, at the Lord's command, pronounced sentence by lot on Achan who had stolen of the anathema. Again Saul, by drawing lots, found that his son Jonathan had eaten honey (1 Kgs. 14:58, sqq.): Jonas, when fleeing from the face of the Lord, was discovered and thrown into the sea (Jonas 1:7, sqq.): Zacharias was chosen by lot to offer incense (Lk. 1:9): and the apostles by drawing lots elected Matthias to the apostleship (Acts 1:26). Therefore it would seem that divination by lots is not unlawful.
Objection 3 : Further, fighting with the fists, or "monomachy," i.e. single combat as it is called, and trial by fire and water, which are called "popular" trials, seem to come under the head of sortilege, because something unknown is sought by their means. Yet these practices seem to be lawful, because David is related to have engaged in single combat with the Philistine (1 Kgs. 17:32, sqq.). Therefore it would seem that divination by lot is not unlawful.