"Not every one that saith unto Me, Lord, Lord, shall enter into the Kingdom of Heaven." (Mt. 7:21)

Brethren, one does not gain the Kingdom of God with the tongue, but with the heart. The heart is the treasury of those riches by which the Kingdom is purchased - the heart, and not the tongue! If the treasury is filled with the riches of God (i.e., strong faith, good hope, ardent love and good deeds), then the herald of those riches - the tongue - is faithful and pleasant. If the treasury is devoid of all those riches, then its herald is false and imprudent. As the heart is, so are the words. As the heart is, so are the deeds. All, all depends on the heart.

Hypocrisy is helpless before men and is even more helpless before God. "If then I am a father," says the Lord through the Prophet Malachi, "If then I am a father, where is the honor due to Me? And if I am master, where is the reverence due to Me? (Mal. 1:6) That is: "I hear you call Me 'Father,' but I do not see you honoring Me with your heart. I hear you call Me 'Master,' but I do not see you honoring Me with your heart. I hear you call Me 'Master,' but I do not see fear of Me in your hearts."

Our prayer, "Lord! Lord!" is beautiful  and beneficial only when it emerges from a prayerful heart. The Lord Himself commanded that we pray unceasingly, not just with the tongue to be heard by men, but rather enclosed in the cell of the heart, so that the Lord can hear and see us.

O Lord, majestic and wonderful, deliver us from hypocrisy and pour Thy fear into our hearts, so that our hearts may stand continually upright in prayer before Thee.

To Thee be glory and praise forever. Amen.

On how the Kingdom of God is gained with the heart and not with the tongue
The Prologue of Ohrid, Vol. I
3 January, Homily