'Hands' in the Bible

After these things, I looked, and there was a crowd so large that no one was able to count it! They were from every nation, tribe, people, and language. They were standing in front of the throne and the lamb and were wearing white robes, with palm branches in their hands.

The second beast forces all people important and unimportant, rich and poor, free and slaves to be marked on their right hands or on their foreheads,

Then I saw what looked like a sea of glass mixed with fire. Those who had conquered the beast, its image, and the number of its name were standing on the sea of glass holding God's harps in their hands.

Then I saw thrones, and those who sat on them were given authority to judge. I also saw the souls of those who had been beheaded because of their testimony about Jesus and because of the word of God. They had not worshipped the beast or its image and had not received its mark on their foreheads or hands. They came back to life and ruled with the Messiah for a thousand years.