John 8:6

This they said to test him , that they might have some charge to bring against him . Jesus bent down and wrote with his finger on the ground .

They were using this question as a trap, in order to have a basis for accusing him. But Jesus bent down and started to write on the ground with his finger.

This they said, tempting him, that they might have to accuse him. But Jesus stooped down, and with his finger wrote on the ground, as though he heard them not .