'It is I' in the Bible

And every one got the other by the head, driving his sword into the other's side, so they all went down together: and that place was named the Field of Sides, and it is in Gibeon.

Then Abner looked behind him, and said, Is it thou, Asahel? And he answered, It is I.

Nathan then said to David, “You are the man! Thus says the Lord God of Israel, ‘It is I who anointed you king over Israel and it is I who delivered you from the hand of Saul.

And Nathan goeth unto his house, and Jehovah smiteth the lad, whom the wife of Uriah hath born to David, and it is incurable;

Then Absalom commanded his young men, saying, "Mark when Amnon's heart is merry with wine; and when I bid you smite Amnon, then kill him. Fear not, for it is I that bid you. Be bold therefore and play the lusty bloods."

And David spoke to Jehovah when he saw the angel that smote among the people, and said, Behold, it is I that have sinned, and it is I that have committed iniquity; but these sheep, what have they done? let thy hand, I pray thee, be on me, and on my father's house!