Matthew 26:47

Some may say that a great multitude came, because of the great multitude of those who already believed, who, they feared, might rescue Him out of their hands; but I think there is another reason for this, and that is, that they who thought that He cast out dæmons through Beelzebub, supposed that by some magic He might escape the hands of those who sought to hold Him.

At any rate, "While He yet spake, lo, Judas, one of the twelve, came, and with him a great multitude with swords and staves, from the chief priests and elders of the people." Seemly surely are the instruments of the priests! "with swords and staves" do they come against Him! And Judas, it is said, with them, one of the twelve. Again he calleth him "of the twelve," and is not ashamed. Now he that betrayed Him gave them a sign, saying, "Whomsoever I shall kiss, that same is He, hold Him fast." Oh! what depravity had the traitor's soul received. For with what kind of eyes did he then look at his Master? with what mouth did he kiss Him? Oh! accursed purpose; what did he devise? What did he dare? What sort of sign of betrayal did he give? Whomsoever I shall kiss, he saith. He was emboldened by his Master's gentleness, which more than all was sufficient to shame him, and to deprive him of all excuse for that he was betraying one so meek.

One of the twelve, by association of name, not of desert. This shows the monstrous wickedness of the man who from the dignity of the Apostleship became the traitor. To show that it was out of envy that they seized Him, it is added, A great multitude sent by the Chief Priests and elders of the people.

(non occ.) Having said above that the Lord offered Himself of His own accord to His pursuers, the Evangelist proceeds to relate how He was seized by them.

(Serm. de Symb. ad Catech. 6.) Exult, Christian, you have gained by this bargain of your enemies; what Judas sold, and what the Jews bought, belongs to you.