Charles H. Spurgeon on Psalms 50:23

Whoso offereth praise glorifieth me. Thanksgiving is a God exalting work. Though nothing can add the least cubit to God's essential glory, yet praise exalts him in the eyes of others. Praise is a setting forth of God's honour, a lifting up of his name, a displaying the trophy of his goodness, a proclaiming his excellency, a spreading his renown, a breaking open the box of ointment, whereby the sweet savour and perfume of God's name is sent abroad into the world. To him that ordereth his conversation aright. Though the main work of religion lies within, yet "our light must so shine, "that others may behold it; the foundation of sincerity is in the heart, yet its beautiful front piece appears in the conversation. The saints are called "jewels, "because they cast a sparkling lustre in the eyes of others. An upright Christian is like Solomon's temple, gold within and without: sincerity is a holy leaven, which if it be in the heart will work itself into the life, and make it swell and rise as high as heaven. Php 3:20. Thomas Watson.