why do we...
...Stand when we sing?
"Then...Levites..STOOD UP and praised the Lord, the God of Israel, with a very loud voice." (2 Chronicles 20:19 NIV)
...Lift our hands?
"I will praise You as long as I live, and in Your name I WILL LIFT UP MY HANDS." (Psalms 63:4 NIV)
"On every Lord's day, each of you should put aside something from what you have earned during the week, and use it for this offering. The amount depends on how much the Lord has helped you earn." (1 Corinthians 16:2 TLB)