...the Lord said as He drew near His passion, 'Now is the Son of man glorified, and God is glorified in Him. If God is glorified in Him, God will also glorify Him in Himself; and He will glorify Him at once' (Jn. 13:31-32). From This it is clear that divine gifts follow sufferings endured for the sake of virtue.
Maximus the ConfessorHe who asks to receive his daily bread does not automatically receive it in its fullness as it is in itself: he receives it according to his own capacity as recipient. The Bread of Life (cf. Jn. 6:35) gives Himself in His love to all who ask, but not in the same way to all; for He gives Himself more fully to those who have performed great acts of righteousness, and in smaller measure to those who have not achieved so much. He gives Himself to each person according to that person's spiritual ability to receive Him.
Maximus the ConfessorTemptations come on some people for the cleansing of previous sins, on other for the beautification of their current perfection, and on yet others, as preparation for things to come, except temptations, which are for the increase of a man's faith and virtue, as it was with Job.
Maximus the ConfessorWhatever a man loves he inevitably clings to, and in order not to lose it he rejects everything that keeps him from it. So he who loves God cultivates pure prayer, driving out every passion that keeps him from it. He who drives out self-love, the mother of the passions, will with God's help easily rid himself of the rest, such as anger, irritation, rancor and so on. But he who is dominated by self-love is overpowered by the other passions, even against his will. Self-love is the passion of attachment to the body.
Maximus the ConfessorTo harbor no envy, no anger, no resentment against an offender is still not to have charity for him. It is possible, without any charity, to avoid rendering evil for evil. But to render, spontaneously, good for evil - such belongs to a perfect spiritual love.
Maximus the Confessor