Is this a Biblical practice? Why do we do it? What are the origins of it? Within this, I'm also interested in the origins of various other kinds of worship "practices" we do in the church such as clapping of hands, etc.
Thought I'd share a story here, from my childhood. When I was a youngster (about 10 or 11), I was in the kids ministry one Sunday. Me not being the most outspoken or demonstrative person would tend to stand but not move about much or dance during worship as many of the other kids were doing. One day, I was pulled out of church and disciplined and threatened for my perceived "lack of reverence" for God. It took me many years before I felt comfortable even raising hands to God in church again, as this incident affected me deeply.
I wasn’t looking for an answer to this, but was doing a word study on Zechariah, and came across the answer to this OP.
It’s found in the name Judah. Interesting to note too that Jesus came from this tribe.
Judah:
H3034
יָדָה
yâdâh
yaw-daw'
A primitive root; used only as denominative from H3027; literally to use (that is, hold out) the hand; physically to throw (a stone, an arrow) at or away; especially to revere or worship (with extended hands); intensively to bemoan (by wringing the hands): - cast (out), (make) confess (-ion), praise, shoot, (give) thank (-ful, -s, -sgiving).
Total KJV occurrences: 114
Plus:
H3027
H3027 = AHLB# 1211-A (N)
1211) Di% (Di% YD) ac: Throw co: Hand ab: Thanks: The pictograph i is a picture of a hand, the d is a picture of door that allows movement in and out of the tent. Combined these mean "hand moves". The hand is the part of the body that enables man to perform many works. (eng: yard - with the addition of the r, a measurement equal to the length of the arm)
A) Di% (Di% YD) ac: ? co: Hand ab: ?: With the hand one can throw away or grab hold, kill or heal, make or destroy.
Nf) Di% (Di% YD) - Hand: [Hebrew and Aramaic] [df: Ky] [freq. 1632] |kjv: hand, by, him, power, tenons, thee, coast, side| {H3027, H3028, H3197}
if1) Edft% (Edft% TW-DH) - I. Thanks: II. Confession: In the sense of raising up the hands. [freq. 32] |kjv: thanksgiving, praise, thanks, confession| {H8426}
B) Ddi% (Ddi% YDD) ac: Throw co: ? ab: ?: The work of the hand.
V) Ddi% (Ddi% Y-DD) - Throw: [freq. 3] (vf: Paal) |kjv: cast| {H3032}
G) Dei% (Dei% YHD) ac: ? co: Hand ab: ?: The throwing out of the hand for throwing, praising, or confessing.
V) Dei% (Dei% Y-HD) - Jew: To be from the tribe of Judah. [A denominative verb from the name Yehudah (Judah)] [freq. 1] (vf: Hitpael) |kjv: Jew| {H3054}
H) Edi% (Edi% YDH) ac: Throw co: Hand ab: ?: The throwing out of the hand for throwing, praising, or confessing.
V) Edi% (Edi% Y-DH) - I. Throw: [df: hdh] II. Praise: [Hebrew and Aramaic] III. Confess: In the sense of raising up the hands. [freq. 117] (vf: Paal, Hiphil, Hitpael, Piel) |kjv: praise, thank, confess, thanksgiving, cast, shoot, put| {H1911, H3029, H3034}