If you think that worship equals singing, A Taste of Heaven: Worship in the Light of Eternity by RC Sproul is a must-read book for you.
Judging other believers
If a local church developed a schism such that it divided into opposing camps, both camps might be tempted to judge the other side using 1 John 2:9-:11. But the Apostle John did not write these verses to be a club to condemn each other.
