Purity is not innocence; it is much more. Purity means spotlessness, a blameless character that has stood the test. Purity is developed in private, never in public. Jesus Christ demands purity of mind and thoughts, chastity of physical and intellectual habits. The only men and women it is safe to trust are those who have been tried and have stood the test; purity is the outcome of conflict, not of necessity.
“He who loves purity of heart and has grace on his lips, the king will be his friend” (Proverbs 22:11, NKJV). “Purity and graciousness are advantageous; they help give a person a friendship with leaders in high positions.”
Purity must be developed in motives as well as morals. Christian’s will be judged not just for what they do, but the motive behind it as well. Solomon wrote, “All the ways of a man are pure in his own eyes, But the Lord weighs the spirits” (Proverbs 16:2, NKJV). Paul wrote, “Therefore judge nothing before the time, until the Lord comes, who will both bring to light the hidden things of darkness and reveal the counsels of the hearts. Then each one’s praise will come from God” (1 Corinthians 4:5, NKJV).
We tend to exalt the spectacular and sensational, and depreciate that which is menial or inconspicuous. God will be able to judge, not only what is seen by the eye, but also the motives of the hearts. He will reveal the counsels of the hearts and anything that was done for self-display or self-glory will fail to receive a reward.
Because life is a process, a Shepherd must guard his heart and be open with those that know him best. Genuine relationships will produce honesty in the area of Biblical purity and help the Shepherd to face honest, personal behavioral characteristics. In addition, he should hear what his critics might be saying, and without taking it all to heart, use it as an opportunity for personal development and positive public perception.
 John F. Walvoord, Roy B. Zuck and Dallas Theological Seminary, The Bible Knowledge Commentary: An Exposition of the Scriptures (Wheaton, IL: Victor Books, 1983- ). Pr 22:11.