The Instructions of Commodianus 55

Of the seed of the tares, who stand mingled in the Church. When the times of the harvest are filled up, the tares that have sprung up are separated from the fruit, because God had not sent them. The husbandman separates all those collected tares. The law is our field; whoever does good in it, assuredly the Ruler Himself will afford a true repose, for the tares are burned with fire. If, therefore, you think that under one they are delaying, you are wrong. I designate you as barren Christians; cursed was the fig-tree without fruit in the word of the Lord, and immediately it withered away. Ye do not works; ye prepare no gift for the treasury, and yet ye thus vainly think to deserve well of the Lord.