정숙한 소리로 =solemn sounds: Church Manual for Sound System Operators in Church        
---Every Church in the digital modernism has a digital sound-system and deacons are operating it.
---Just as any of our doctrines are based on the Bible and the Spirit of Prophecy on Revelation through the Bible, so also do the Bible and Spirit of Prophecy tell sound-operators what they should do. 
---Psalm 92:3 used the words that when you play sounds in Church, you should use "mild sounds" = 정숙한 소리로.
---It is common for video makers of our church to use Hollywood Special effects sounds to drum up the feelings, and emotions of people watching. The converted sound-operator will turn down those sounds or cancel them in previewing. 
---Pastors should give Sound-Operators the authority to switch off offensive, loud, music or sounds or turn the volume down to a mild worship level.
---The church does not belong to anyone but God. Worship, also in music, is not for a theater but for worship.
---It is not advised by Spirit of Prophecy that unconverted singers or musicians or Sound-Operators should be involved in acoustics.
---Sounds were designed by God but Satan stole them. 
---Therefore the sound-operator must constantly listen and make the decision whether a sound is from God or from Satan through Hollywood.
---The golden rule is, if the performance is so loud that you cannot hear the quiet voice of the Spirit in your mind (Romans 8:26), then put the sound level down.
---If the choice is between Hollywood Performance or Worship, choose worship and bring mild sounds for the worshippers.
---Do not treat the members of the church as audience but as worshippers.
---Sound-operators should be given one hour instruction a week by the local pastor on Richard Hammill Church Music book. Korean sound-operators should study chapter by chapter the book by Sahmyook University professor emeritus of Music and Sounds, professor Cho published in 2023.
---If the sounds of electronic or digital music or boosters causes the church benches to tremble, bring the sound level much lower. 
---Keep in mind that other Pentacostal churches are using the sound system to control the feelings of the members and their emotions. They are using the same technique that Hitler used of mass-hypnosis with sounds and repetition. 
---In the years 1895-1900, pastors in the USA was experimenting with rhythm, repetition, loud sounds and instruments that could help them doing that  Result: hand-clapping, dancing, shouting, hallelujah screams, amen screams, speaking in tongues. So Ellen White left Australia to stop this phenomenon in Adventism.
---Our Adventist hymnal has 700 plus songs that can be reworked to bring beautiful music to us in a surprising wonderful way.
---See how www.fountainviewacademy.org has succeeded to bring high quality church music to Adventism in our time.
---Young people should be discouraged to similate modern pop or ballad for use in worship.
---Borrowing from other denominations celebration songs that encourage Pentacostalism and dancing, should not be part of our worship.
---The role of the sound-operator is a very delicate one because Satan can use it to split the church or even leads it to Secularism and not worship.
----Sound-operators should daily enrich themselves with this topic of sound, church music, worship, and what God says about it. 
---A dedicated sound-engineer can be a very great blessing for the ministry because grandmother who is 90 years cannot hear well. 
---Wisdom and consideration and love of God and His space of worship in place and time, is essential ingredients for proper spiritual development of all.