One must behave affectionately toward one’s neighbors, not showing even a hint of offense. When we turn away from a person or offend him, it is as if a rock settles on our heart. One must try to cheer the spirit of an embarrassed or dejected person with words of love.
When you see a brother sinning, cover him, as counseled by St. Isaac the Syrian: "Stretch out your vestment over the sinner and cover him."
In our relations with our neighbors we must be equally pure towards everyone in word as well as in thought; otherwise we will make our life useless. We must love others no less than ourselves, in accordance with the law of the Lord: "Thou shalt love ... thy neighbour as thyself" (Lk. 10:27). But not so much that our love for others, by extending past the boundaries of moderation, diverts us from fulfilling the first and main law of love towards God, as our Lord Jesus Christ himself taught: "He that loveth father or mother more than me is not worthy of me: and he that loveth son or daughter more than me is not worthy of me" (Mt. 10:37).
St.Seraphim of Sarov