'Finger' in the Bible

But this they said proving him, that they might have something to accuse him of. But Jesus, having stooped down, wrote with his finger on the ground.

The other disciples therefore said to him, We have seen the Lord. But he said to them, Unless I see in his hands the mark of the nails, and put my finger into the mark of the nails, and put my hand into his side, I will not believe.

Then he says to Thomas, Bring thy finger here and see my hands; and bring thy hand and put it into my side; and be not unbelieving, but believing.