Every sin that is left without repentance is a sin unto death, for which if even a saint shall pray, he shall not be heard.

No one is as good and merciful as the Lord. But even He does not forgive the unrepentant.

God tested Abraham. That is, he sent him afflictions for his benefit, not so that he could find out what sort of man he was, for God knows everything, but so that He give him the means to perfect his faith.

Whoever with fear of God corrects and directs a sinner gains virtue for himself, that of opposition to sin. But whoever insults a sinner with rancor and without good will falls, according to a spiritual law, into the same passion with the sinner.

One who has sinned cannot escape retribution in any other way than by repentance corresponding to his sin.

God values deeds according to their intentions. For it is said, "The Lord grant unto you according to your heart" (Ps. 19:5) ... Therefore, whoever wants to do something but can't is considered as having done it by God, who sees the intentions of our hearts. This applies to both good and evil deeds alike.

Do not think about or do anything without a spiritual purpose, whereby it is done for God. For If you travel without purpose, you shall labor in vain.