'Thumbs' in the Bible

You are to put the sheep to death, and take some of its blood and put it on the point of Aaron's right ear, and of the right ears of his sons, and on the thumbs of their right hands and the great toes of their right feet, dropping the rest of the blood on the sides of the altar.

Then he took Aaron's sons, and Moses put some of the blood on the point of their right ears and on the thumbs of their right hands and on the great toes of their right feet: and Moses put the blood on and round the altar.

But Adoni-zedek went in flight; and they went after him and overtook him, and had his thumbs and his great toes cut off.

And Adoni-zedek said, Seventy kings, whose thumbs and great toes had been cut off, got broken meat under my table: as I have done, so has God done to me in full. And they took him to Jerusalem, and he came to his end there.