The Second Epistle of Clement to the Corinthians

And let us not be displeased or be vexed in our foolishness when any one admonishes us, and turns us from unrighteousness to righteousness. For sometimes when we do evil we do not know it because of the double-mindedness and unbelief which is in our breasts, and we are darkened in our understanding by vain desires.

Let us then do righteousness, that we may be saved at the end. Blessed are they who obey these instructions: though they suffer for a short time in this world, they shall gather the immortal fruit of the resurrection.

Let not, then, the pious grieve if he endure sorrow at this present time; a time of blessedness awaits him; he shall live again with the fathers above, and rejoice to an eternity wherein is no sorrow.

But neither let it grieve your mind that we see[*](The prosperity of the righteous) the unrighteous enjoying wealth, and the servants of God oppressed.