Avoid duplicity, that is, do not let your heart be divided between attachment to God and attachment to earthly things, 'You cannot serve God and mammon' (Mt. 6:24); cling to God alone, put your trust in Him alone; for the Devil, by inciting us to duplicity, seeks himself to gain possession of our heart, which is single and indivisible.
John of KronstadtIf you see the fury and hear the howling of the tempest, or read of shipwrecks, think of the storm of human passions causing daily groans and disturbance in the hearts of men, wrecking the spiritual ship of the soul or the ship of human society; and pray fervently to the Lord that He may subdue the tempest of sins, as He once subdued the tempest at sea by His word, and that He may root our passions from our hearts, and re-establish in them unceasing tranquility.
John of KronstadtIt would seem, after this, that even when living upon earth we must live as if in the heavenly kingdom, dwelling there in anticipation by hope. But in reality, for the greater part, the contrary is the case. Men cling with their whole being to the earth and everything earthly.
John of KronstadtEvery man on earth is sick with the fever of sin, with the blindness of sin and is overcome with its fury. As sins consist mostly of malice and pride, it is necessary to treat everyone who suffers from the malady of sin with kindness and love. This is an important truth, which we often forget. Very often we act in the opposite manner: we add malice to malice by our anger, we oppose pride with pride. Thus, evil grows within us and does not decrease; it is not cured - rather it spreads
John of KronstadtIt is necessary for a Christian to fast, in order to clear his mind, to rouse and develop his feelings, and to stimulate his will to useful activity. These three human capabilities we darken and stifle above all by 'surfeiting, and drunkenness, and cares of this life' (Lk. 21:34).
John of KronstadtDo not lose your temper with those who sin. Do not have a passion for noticing every sin in your neighbor and judging it, as we usually do. Everyone will give an answer for himself before God. Especially, do not look with evil intention on the sins of those older than you, with whom you have no business. But correct your own sins, your own heart.
John of Kronstadt