'Deceit' in the Bible

Is it not clear to you that Abner, the son of Ner, came with deceit to get knowledge of your going out and your coming in and of all you are doing?

And he said in answer, Because of the deceit of my servant, my lord king: for I, your servant, said to him, You are to make ready an ass and on it I will go with the king, for your servant has not the use of his feet.