Charles H. Spurgeon on Psalms 64:10

All the upright in heart shall glory. The Psalm began in the first person singular, Hear my voice, O God, but it ends by comprehending all the righteous. He who is most anxious about his own salvation will be found to be the man of the truest and widest love to others; while he who talks most of unselfishness in religion is generally the most selfish. We cannot take a more efficient method for benefiting others than by being earnestly prayerful for ourselves that we may be preserved from sin. Our example will in itself be useful, and our godliness, by putting power into our testimony, will increase the value of every rebuke, exhortation, or encouragement we may utter. Our sin is or will be the church's sorrow, and the way to make all the upright rejoice is to be upright ourselves. C. H. S.