Origen
Catena Aurea · Matthäusevangelium 21
And he left them, and went out of the city into Bethany; and he lodged there. Now in the morning as he returned into the city, he hungered. And when he saw a fig tree in the way, he came to it, and found nothing thereon, but leaves only, and said unto it, Let no fruit grow on thee henceforward for ever. And presently the fig tree withered away. And when the disciples saw it, they marvelled, saying, How soon is the fig tree withered away! Jesus answered and said unto them, Verily I say unto you, If ye have faith, and doubt not, ye shall not only do this which is done to the fig tree, but also if ye shall say unto this mountain, Be thou removed, and be thou cast into the sea; it shall be done. And all things, whatsoever ye shall ask in prayer believing, ye shall receive.
But if the Lord come seeking fruit with temptations, and one be found having nought of righteousness but only a profession of faith, which is leaves without fruit, he is soon withered, losing even his seeming faith; and every disciple makes this fig tree to wither, by making it be seen that he is void of Christ, as Peter said to Simon, Thy heart is not right in the sight of God (Acts 8:21.) For it is better that a deceitful fig tree which is thought to be alive, yet brings forth no fruit, should be withered up at the word of Christ’s disciples, than that by an imposture it should steal aawy innocent hearts. Also there is in every unbeliever a mountain great in proportion to his unbelief, which is removed by the words of Christ’s disciples.