Whoever strives towards God and really wants to become Christ’s follower must follow Him, endeavoring to improve himself and become a new person, not retaining anything within oneself that is peculiar to the ancient person — for it is said:" if anyone is in Christ, he is a new creation."
St. Macarius the Great
Animals, such as cows, that are raised in order to be slaughtered and butchered are allowed to graze and eat freely, and they are fed to be fattened. Conversely, animals that will be used for work or provide some service to man are trained, disciplined, and kept an a strict diet. This is what God does as well. He allows malicious people in this present life to grow fat as they indulge in carnal pleasures and sinful enjoyments because
such unfortunate people will finally end up in eternal Hell.
On the contrary, He tests and disciplines virtuous and righteous people in order to keep them in His heavenly mansion forever. Fruit-bearing trees that yield a crop and produce a bountiful harvest are pruned, they are sprayed with pesticides, and have
heavy weights attached to the end of their branches, which bend and pull the branches
downward. All these harsh measures, however,
are conducive to the tree bringing forth fruit.
Conversely, trees that do not produce fruit and are of no value to man are neither pruned nor clipped like fruit-bearing trees. However, once such trees grow and reach maturity, they are cut down,
completely uprooted from the ground, and subsequently used as firewood. This is what happens with man in this world as well. Virtuous people who produce useful and good works receive sorrows and lashes, whereas the
Righteous Judge does not punish evil and sinful people here because He is waiting to consume them eventually in the fire of Hell.
The prosperity and good fortune of ungodly people is actually a severe misfortune! For when such people observe nothing bad happening to them and that they are not punished in any way, they shamelessly and impudently proceed to carry out even greater sins and worse crimes.
Furthermore, when such a person remains
undisciplined, it is a sign that he will be punished and condemned, because the enemy does not disturb or assault his own friends. Thus it is apparent, just as we have illustrated above, that the more God loves someone, the more He allows one
temporarily, and for the time being, to experience discipline that is beneficial and ultimately life
-saving for the soul.
from The Salvation of Sinners