When Gideon realized that it was the angel of the LORD, he said, “Oh no, Lord GOD! I have seen the angel of the LORD face to face!”
KJV
And when Gideon perceived that he [was] an angel of the LORD, Gideon said, Alas, O Lord GOD! for because I have seen an angel of the LORD face to face.
ASV
And Gideon saw that he was the angel of Jehovah; and Gideon said, Alas, O Lord Jehovah! forasmuch as I have seen the angel of Jehovah face to face.