'It is I' in the Bible

For even if you were to have ten thousand spiritual instructors--for all that you could not have several fathers. It is I who in Christ Jesus became your father through the Good News.

To the rest it is I who speak--not the Lord. If a brother has a wife who is an unbeliever, and she consents to live with him, let him not send her away.

It is important, brethren, that you should have clear knowledge on the subject of spiritual gifts.

But whether it is I or they, this is the way we preach and the way that you came to believe.

If from merely human motives I have fought with wild beasts in Ephesus, what profit is it to me? If the dead do not rise, let us eat and drink, for tomorrow we are to die.