'Thing' in the Bible

After a time Jesus came across him in the Temple and said to him, See, you are well and strong; do no more sin for fear a worse thing comes to you.

You are the children of your father the Evil One and it is your pleasure to do his desires. From the first he was a taker of life; and he did not go in the true way because there is no true thing in him. When he says what is false, it is natural to him, for he is false and the father of what is false.

He said in answer, I have no knowledge if he is a sinner or not, but one thing I am certain about; I was blind, and now I see.

The man said in answer, Why, here is a strange thing! You have no knowledge where he comes from though he gave me the use of my eyes.