Basil the Great
Catena Aurea · Lukasevangelium 22
And he said unto them, When I sent you without purse, and scrip, and shoes, lacked ye any thing? And they said, Nothing. Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one. For I say unto you, that this that is written must yet be accomplished in me, And he was reckoned among the transgressors: for the things concerning me have an end. And they said, Lord, behold, here are two swords. And he said unto them, It is enough.
(Reg. Brev. int. 31.) Or the Lord does not bid them carry purse and scrip and buy a sword, but predicts that it should come to pass, that in truth the Apostles, forgetful of the time of the Passion, of the gifts and law of their Lord, would dare to take up the sword. For often does the Scripture make use of the imperative form of speech in the place of prophecy. Still in many books we do not find, Let him take, or buy, but, he will take, he will buy.