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.

Conquer temptations by the patience and prayer. If you oppose them without these, you will fall all the more severely.

Consistently pray in all things, so that you might not do anything without the help of God ... Whoever does or busies himself with anything without prayer does not succeed in the end. Concerning this, the Lord said: "Without Me you can't do anything". (John 15:5)

It is harmful to remember previous sins in detail. For if they bring you sorrow, they will estrange you from hope, but if they are remembered without sorrow, they will introduce the previous defilement. If you want to bring to God an uncondemned confession, then don't remember your sins in detail, but manfully endure the suffering that is coming because of them.

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.

A man who is enticed by sinful thoughts is blinded by them, and he sees the action of sin in himself, but he can not see the cause of this action.

The devil makes small sins seem smaller in our eyes, for otherwise he can't lead us to greater evil.