Peter ... put to Him this question in behalf of all the world ... For He had required of the rich man these two things, to give that he had to the poor, and to follow Him. ... For the forsaking was done for the sake of following, and the following was rendered easier by the forsaking.
St. John Chrysostom
Homily 64 on Matthew 19, 4th Century
But He seems to me here to intimate also the persecutions. For since there were many instances both of fathers urging their sons to ungodliness, and wives their husbands; when they command these things, said He, let them be neither wives nor parents, even as Paul likewise said, "But if the unbelieving depart, let him depart."
St. John Chrysostom
Homily 64 on Matthew 19, 4th Century
Moses... was himself saved by means of wood and water before the Law was given, when he was exposed to the Nile's currents, hidden away in an Ark (Exod. 2:3-10). And by means of wood and water he saved the people of Israel, revealing the Cross by the wood, Holy Baptism by water (Exod. 14:15-31). Paul, who had looked upon the mysteries, says openly, 'They were all baptized unto Moses in the cloud' (I Cor. 10:2). He also bears witness that, even before the events concerning the sea and his staff, Moses willingly endured Christ's Cross, 'Esteeming', he says, 'the reproach of Christ greater riches than the treasures of Egypt' (Heb. 11:26). For the Cross is the reproach of Christ from the standpoint of foolish men. As Paul himself says of Christ, 'He endured the cross, despising the shame' (Heb. 12:2).
St. Gregory Palamas
Homilies Vol. 1, Homily Eleven para. 14; Saint Tikhon's Seminary Press pg. 123, 14th century
AT all times indeed, but especially then when I reflect upon the achievements of the saints, it comes over me to feel despondency concerning my own condition, because we have not even in dreams experienced the things among which those men spent their whole lives, not paying the penalty of sins, but always doing rightly and yet always afflicted...For "God" (he says) "has provided some better thing for us." In order that they might not seem to have the advantage of us from being crowned before us, He appointed one time of crowning for all; and he that gained the victory so many years before, receives his crown with thee. Seest thou His tender carefulness?
St. John Chrysostom
Homily 28 on Hebrews 11, 4th Century
For in a contest there is much labor needed--and after the contest victory falls to some, to others disgrace. Is the palm ever given or the crown granted before the course is finished? ... Therefore no one can receive a reward, unless he has striven lawfully; nor is the victory a glorious one, unless the contest also has been toilsome.
St. Ambrose of Milan
Chapter 15, Three Books on the Duties of the Clergy, 4th century