Believers in Jesus, as we read in the Scriptures, are "all children of the light, and children of the day," and are privileged to "walk in the light, as God is the light," God Himself being "their everlasting light, and their God their glory." Thus "walking in the light," they "have fellowship one with another;" and more than this, "with the Father, and with His Son Jesus Christ." Abiding in this light and in this fellowship, their "joy is full,"...