Origen 

"A man is justified by faith. The works of the law can make no contribution to this. Where there is no faith which might justify the believer, even if there are works of the law, these are not based on the foundation of faith." (Commentary on Luke, 23:43)

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“He is saying that the justification of faith alone suffices, so that the one who only believes is justified, even if he has not accomplished a single work. It is incumbent upon us, therefore, as those who are attempting to defend the harmoniousness of the Apostle’s writings and to establish that they are entirely consistent in their arrangement, that we should ask: Who has been justified by faith alone without works of the law? Thus, in my opinion, that thief who was crucified with Christ should suffice for a suitable example. He called out to him from the cross, ‘Lord Jesus, remember me when you come into your kingdom!’ In the Gospels nothing else is recorded about his good works, but for the sake of this faith alone Jesus said to him, ‘Truly I say to you: Today you will be with me in paradise.’ If it seems appropriate, let us now apply the words of the Apostle Paul to the case of this thief and say to the Jews, ‘Where then is your boasting?’ Certainly it is excluded, but excluded not through the law of works but through the law of faith. For through faith this thief was justified without works of the law, since the Lord did not require in addition to this that he should first accomplish works, nor did he wait for him to perform some works when he had believed” (Commentary on Romans, 3.9)