John Chrysostom

It is necessary to "believe that He is," not "what He is." If "that He is" needs Faith, and not reasonings; it is impossible to comprehend by reasoning "what He is." If that "He is a rewarder" needs Faith and not reasonings, how is it possible by Reasoning to compass His essence? For what Reasoning can reach this? For some persons say that the things that exist are self-caused. Seest thou that unless we have Faith in regard to all things, not only in regard to retribution, but also in regard to the very being of God, all is lost to us?

Wherefore they who say that all things are ruled and governed of themselves, and do not expect a reward, are not well-pleasing; as neither are the heathen. For "He becomes a rewarder of them that diligently seek Him" by works and by knowledge.

Since then we have "a rewarder," let us do all things that we may not be deprived of the rewards of virtue. For indeed the neglecting such a recompense, the scorning such a reward, is worthy of many tears. For as to "those who diligently seek Him," He is a rewarder, so to those who seek Him not, the contrary.