Why do we worship God?

"You shall worship the Lord your God, and Him only you shall serve." (Matt 4:10) 
"O come, let us worship and bow down; let us kneel before the Lord our maker." (Psa 95:6) 
"For all the nations shall come and worship before You." (Rev. 15:4)

How shall we worship God?

"But the hour is coming, and now is, when the true worshippers will worship the Father in spirit and truth; for the Father is seeking such to worship Him. God is Spirit, and those who worship Him must worship in spirit and truth." (John 4:23-24) 
"For we are the circumcision, who worship God in the Spirit, rejoice in Christ Jesus, and have no confidence in the flesh." (Phil. 3:3) 
"Worship the Lord in the beauty of holiness!" (Ps. 96:9)

Why do we stand to sing?

"Then the Levites... stood up to praise the Lord God of Israel with voices loud and high." (2 Chr. 20:19) 
"After these things I looked, and behold, a great multitude which no one could number, of all nations, tribes, peoples, and tongues, standing before the throne and before the Lamb, clothed with white robes with palm branches in their hands, and crying out with a loud voice, saying "Salvation belongs to our God who sits upon the throne, and unto the Lamb!"" (Rev. 7:9-10) 
Why do we have audible praise unto God "Bless the Lord, O my soul; and all that is within me, bless Him holy name!" (Ps. 103:1) 
"Therefore by Him, let us continually offer the sacrifice of praise to God that is the fruit of our lips giving thanks to His name." (Heb. 13:15) 
"After I heard these things, I heard a loud voice of a great multitude in Heaven, saying, 'Alleluia! Salvation and glory and honour and power to the Lord our God!'... And I heard, as it were, the voice of a great multitude, as the sound of many waters and as the sound of mighty thundering, saying, 'Alleluia!' For the Lord God Omnipotent reigns!" (Rev. 19:1,6) 
"Let all those rejoice who put their trust in You; let them ever shout for joy, because You defend them." (Ps. 5:11) 
"Be glad in the Lord and rejoice, you righteous; and shout for joy, all you upright in heart!" (Ps. 32:11)

Why do we clap our hands?

"Oh, clap your hands, all you peoples! Shout to God with a voice of triumph!" (Ps. 57:1) 
Why do we lift our hands? "Thus I will bless You while I live, I will lift up my hands in Your name." (Ps. 63:4) 
"Lift up your hands in the sanctuary, and bless the Lord." (Ps. 134:2) 
"Therefore I desire that the men pray everywhere, lifting up holy hands without wrath and doubting." (1 Tim. 2:8)

"Sing to the Lord a new song, and His praise in the congregation of saints. Let Israel rejoice in their maker, let the children of Zion be joyful in their King. Let them praise His name with their dance; let them sing praises to Him with the timbrel and harp." (Ps. 149:1-3) 
"Praise Him with timbrel and dance." (Ps. 150:4) 
"The David danced before the Lord with all his might. (2 Sam. 6:14)

Why do we dance before the Lord?

Why do we sing in Tongues and in English?

"For if I pray in a tongue, my spirit prays, but my understanding is unfruitful. What is the result then? I will pray with the spirit, and I will also pray with the understanding. I will sing with the spirit, and I will also sing with the understanding." (1 Cor. 14:14-15) 
Why do we have speaking in unknown tongues and the interpretation in the Church? "Therefore, brethren, desire earnestly to prophesy, and do not forbid to speak with tongues." (1 Cor. 14:39) 
"But the manifestation of the Spirit is given to each one for the profit of all... to another different kinds of tongues, to another the interpretation of tongues." (1 Cor. 12:7,10) 
"I wish you all spoke with tongues, but even more that you prophesied, for he who prophesies is greater than he who speaks with tongues, unless indeed he interprets, that the church may receive edification." (1 Cor. 14:5) 
"If anyone speaks in a tongue, let there be two or at the most three, each in turn, and let one interpret." (1 Cor. 14:27)

Why do we pray with laying on of hands and anointing with oil?

"They will lay hands on the sick, and they will recover." (Mark 16:18) 
"Is anyone among you sick? Let them call the elders of the church, and let them pray over him, anointing him with oil in the name of the Lord." (James 5:14)

"But he who prophesies speaks edification and exhortation and comfort to men." (1 Cor. 14:3) 
"Pursue love and desire spiritual gifts, but especially that you may prophecy." (1 Cor. 14:1)

Why do we Prophecy?

"Praise Him with the sound of the trumpet; Praise Him with the lute and harp! Praise Him with the timbrel and dance; Praise Him with stringed instruments and flutes! Praise Him with loud cymbals; Praise Him with high sounding cymbals!" (Ps. 150:3-5) 
"I heard a voice from Heaven, like the voice of many waters, and like the voice of loud thunder. And I heard the sound of the harpists playing their harps." (Rev. 14:2)

Why are musical instruments a part of the Worship Service?