VII. Individual heart attitudes and entire group participation are both very important, for the Spirit to move in a worship service.
A. The importance of unity.
II Chronicles 5:13, 14 " ... the trumpeters and singers were as one, to make one sound to be heard in praising and thanking the Lord; and when they lifted up their voice (singular) ... then the house of the Lord was filled with a cloud ... so that the priests could not stand to minister by reason of the cloud; for the glory of the Lord had filled the house of God."
Acts 2:1-4 "And when the day of Pentecost was fully come, they were all with one accord in one place, and suddenly there came a sound from heaven as of a rushing mighty wind, and it filled all the house where they were sitting. And there appeared unto them cloven tongues ... and they were all filled with the Holy Ghost, and began to speak with other tongues... "
B. "With gladness" and joy.
I Chronicles 15:16
II Chronicles 29:28, 30
C. "With all their might."
I Chronicles 13:8
D. "In your heart" (not routinely) and "to the Lord" (not to each other or to an audience).
VIII. Whether by the use of instruments, song, or dance, music is a very scriptural means of expression towards God.
A. Hundreds of scripture verses describe or make reference to the purest form of music – the spiritual worship that will fill all eternity.
Psalms 150; etc.
Revelation 5:8-14; 7:15; etc.
B. This liberty of expression is a delight to God (Psalms 149:3, 4). It is the very purpose for which man was created (Revelation 4:11).
Musical Instruments in Church Services
For almost a thousand years Gregorian chant, without any instrumental or harmonic addition, was the only music used in connection with the liturgy. The organ, in its primitive and rude form, was the first, and for a long time the sole, instrument used to accompany the chant. It gave the pitch to the singers and added brilliancy and sonority. In secular music, however, instruments played an important role at an early date. It may be said that instrumental music developed simultaneously with the secular music itself. The troubadours, trouveres, and jongleurs (who flourished in France, Italy, and Spain from the eleventh to the fourteenth centuries inclusive), and their English contemporaries, the minstrels or wayfarers, as well as the minnesingers in Germany during the twelfth and thirteenth centuries, accompanied their chants and lyric improvisations on instruments.
1 Corinthians 10:23-31 (King James Version)
**23All things are lawful for me, but all things are not expedient: all things are lawful for me, but all things edify not. **
24Let no man seek his own, but every man another’s wealth.
25Whatsoever is sold in the shambles, that eat, asking no question for conscience sake:
26For the earth is the Lord’s, and the fulness thereof.
27If any of them that believe not bid you to a feast, and ye be disposed to go; whatsoever is set before you, eat, asking no question for conscience sake.
28But if any man say unto you, this is offered in sacrifice unto idols, eat not for his sake that shewed it, and for conscience sake: for the earth is the Lord’s, and the fulness thereof:
29Conscience, I say, not thine own, but of the other: for why is my liberty judged of another man’s conscience?
30For if I by grace be a partaker, why am I evil spoken of for that for which I give thanks?
31Whether therefore ye eat, or drink, or whatsoever ye do, do all to the glory of God.
Basically, Musical instruments do edify the Body of Christ in praise to our Lord. They are part of “all that is lawful”. And, one uses said instrument for the glory of God.