'It is I' in the Bible

It is in my power to harm you, but the God of your father spoke to me last night, saying, ‘Be careful not to speak to Jacob, either good or bad.’

And he said to his brothers, “My money has been returned! Here it is in my sack!” And their hearts sank, and they were afraid and turned trembling to one another, saying, “What is this that God has done to us?”