Why We...
...stand when we sing."And the Levites...of the children of the Korhites, stood up to praise the Lord God of Israel with a loud voice on High."
(2 Chronicles 20:19)
...clap our hands.
"O clap your hands all ye people; shout unto God with the voice of triumph"
(Psalms 47:1)
...lift our hands.
"I will therefore that men pray everywhere, lifting up holy hands, without wrath and doubting"
(1 Timothy 2:8)
... have audible praise unto God.
"And when they heard this, they lifted up their voices to God."
(Acts 4:24)
...sing in tongues and in English.
"For if I pray in an unknown tongue, my spirit prayeth, but my understanding is unfruitful. What is it then? I will pray with the Spirit and I will pray with the understanding also; I will sing with the Spirit and I will sing with the understanding also."
(1 Corintians 14: 14-15)
...sing choruses as well as hymns.
"...speaking to yourselves in Psalms and hymns, and spiritual songs, singing and making melody in your heart to the Lord."
(Ephesians 5:19)
...prophecy.
"But he that prophecieth speaketh unto men to edification and exhortation and comfort."
(1 Corinthians 14:3)
...have speaking with tongues and interpretations of tongues.
"But the manifestation of the Spirit is given to every man to profit withal...to another divers of tongues; to another the interpretation of tongues."
(1 Corinthians 12:7, 10)
...all pray at once.
"and when they heard that, they lifted up their voices to God with one accord, and said Lord, Thou are God, which hast made heaven and earth..."
(Acts 4:24)
...anoint with oil and pray for the sick.
"Is any sick among you? Let him call for the elders of the church, and let them pray over him, anointing him with oil in the name of the Lord; and the prayer of faith shall save the sick, and the Lord will raise him up; and if he have committed sins, they will be forgiven him."
(James 5:14, 15)