Moveth - Hebrew chaphets
1) to delight in, take pleasure in, desire, be pleased with
a) (Qal)
1) of men
a) to take pleasure in, delight in
b) to delight, desire, be pleased to do
2) of God
a) to delight in, have pleasure in
b) to be pleased to do
2) to move, bend down
a) (Qal) to bend down
This is the only place where this verb is translated as "move" or "bend". Seems there's a lot of pleasure, delight, and desire connected to this verb, don't you think?
You also forgot the rest of the verse:
the sinews of his stones are wrapped together. (KJV)
What do you think his "stones" are?