For I think that God hath set forth us the apostles last, as it were appointed to death: for we are made a spectacle unto the world, and to angels, and to men. God hath set forth us the apostles last - This whole passage is well explained by Dr. Whitby. "Here the apostle seems to allude to the Roman spectacles, της των θηριομαχων, και μονομαχιας ανδροφονου, that of the Bestiarii and the gladiators, where in the morning men were brought upon the theatres to fight with wild beasts, and to them was allowed armor to defend themselves and smite the beasts that assailed them; but in the meridian or noon-day spectacles the gladiators were brought forth naked, and without any thing to defend themselves from the sword of the assailant; and he that then escaped was only kept for slaughter to another day, so that these men might well be called επιθανατιοι, men appointed for death; and this being the last appearance on the theater for that day, they are said here to be set forth εσχατοι, the last." Of these two spectacles Seneca speaks thus, Epist. vii.: "In the morning men are exposed to lions and bears; at mid-day to their spectators; those that kill are exposed to one another; the victor is detained for another slaughter; the conclusion of the fight is death. The former fighting compared to this was mercy; now it is mere butchery: they have nothing to cover them; their whole body is exposed to every blow, and every stroke produces a wound," etc.
We are made a spectacle - Ὁτι θεατρον εγενηθημεν, We are exhibited on the theater to the world; we are lawful booty to all mankind, and particularly to the men of the world, who have their portion in this life. Angels are astonished at our treatment, and so are the more considerate part of men. Who at that time would have coveted the apostolate?