Let us remain in the care of the Shepherd, and we shall remain there, if we listen to his voice, if we obey him, if we do not follow anyone else. Now, what is his voice like? Blessed are the poor in spirit; blessed are the pure of heart; blessed are the merciful. If we put these beatitudes into practice, we shall remain in the care of the Shepherd, and the wolf will be unable to come inside the fold. However, even if he should attack, he will do this for his own destruction, for we have a Shepherd who loves us so dearly as to lay down his life for us. Therefore, since he is powerful and since he loves us, what prevents us from being saved? Nothing – unless we ourselves should put an obstacle in the way . . . Listen to him saying, You cannot serve two masters, God and mammon. Therefore, if we serve the one, we shall not be subject to the tyranny of the other.
– St. John Chrysostom