A Pure Heart and Sincere Faith: 1 Timothy 1:1-7, especially vs. 5: "The aim of our charge is love that issues from a pure heart and a good conscience and sincere faith." [RSV] Many cities in the United States began as settlements at the confluence of major rivers: Pittsburgh where the Monongehela and the Allegheny join to form the Ohio, St. Louis at the meeting of the Mississippi and the Missouri, or Sacramento where the Feather and the American flow into the Sacramento. Similarly the Apostle points to the City of God from which Divine love flows forth to join "a pure heart and a good conscience and sincere faith" (vs. 5). Having journeyed into the human interior himself, he reveals how we may join the flow of Divine love into the world.
A pure heart commands and controls the soul, banishing evil thoughts that would enter, so that the soul "is not lifted up to vanity" (Ps. 23:4 LXX), but draws close to God, that He may dwell within and aid the Faithful in fully purifying their hearts (Jas. 4:8). St. John of Kronstadt bids each one of us: "notice that God does not tolerate the slightest impurity...and that peace and God Himself leave you immediately after the admittance of any impure thought into your heart. And you become the abode of the Devil if you do not immediately renounce the sin."
The issue is how we attain a pure heart, being long corrupted and still under constant assault by the spirits of evil that war against the soul. St. Philotheos of Sinai teaches that "Once we have in some measure acquired the habit of self-control, and have learnt how to shun visible sins, brought about through the five senses, we will then be able to guard the heart with Jesus, to receive His illumination within it, and by means of the [innermost aspect of the heart] to taste His goodness." The skirmish line of spiritual warfare is within our minds where evil thoughts must be stopped, but we are blessed, for in receiving the seal of the gift of the Holy Spirit on our five senses, we have an invincible Ally Who can destroy these enemies, if we will but seek His aid.
The conscience, being an aspect of the heart, must be purified and healed along with the heart. By God's mercy, we were given a guardian angel at Baptism to speak to our conscience and awaken it. As we heed his prompting, we shall be led to examine our thoughts and actions each day. Then, each day we shall grieve before the Lord. Listen carefully to St. John of the Ladder: "Do not be surprised that you fall every day; do not give up, but stand your ground courageously. And assuredly the angel who guards you will honor your patience."
Of particular concern, like a holy alarm sounding at mortal danger, is deadening of our conscience. As St. John says, "We must carefully consider whether our conscience has ceased to accuse us, not as a result of purity, but because it is immersed in evil....Many from long neglect become incurable, but with God all things are possible." Without a good conscience, love cannot follow, neither for God nor for other men. As St. Diadochous of Photiki declares: "No one can either love truly or believe truly unless he has first brought accusation against himself."
Which brings us to sincere faith, the third essential source of Divine love. The entire work of purification of the heart as the precursor of Divine love applies also to faith, which is why St. Paul speaks of faith that is "sincere, unfeigned, without deceit." Hence, St. Herman of Alaska unites faith and love: "A true Christian is made by faith and love toward Christ. Our sins do not in the least hinder our Christianity, according to the word of the Savior Himself, for He deigned to say: 'not the righteous have I come to call, but sinners to salvation; there is more joy in heaven over one who repents than over ninety righteous ones'" (Mt. 9:13; Lk. 15:7).
O Lord, heal my soul, enlighten the eyes of my heart, grant peace to my spiritual powers, that with a faith unashamed I may love and obey Thee to the attainment of Thy Kingdom.