Yes, it can be. St. Justin Martyr, in his
First Apology, written about A.D. 155, indicates that at least some Old Testament passages that mention the Angel of the Lord refer to Christ. Use the link above to see a few examples of this, beginning down at Chapter LXIII.Now the Word of God is His Son, as we have before said. And He is called Angel and Apostle; for He declares whatever we ought to know, and is sent forth to declare whatever is revealed; as our Lord Himself says, “He that heareth Me, heareth Him that sent Me.” (Chapter LXIII.)
In his
Exposition on Psalm XXXIV, St. Augustine of Hippo identifies the angel of the Lord mentioned there as Christ:
“The Angel of the Lord shall send round about them that fear Him, and shall deliver them.” Whom called He here the Angel of the Lord, who shall send round about them that fear Him, and shall deliver them? Our Lord Jesus Christ Himself is called in Prophecy, the Angel of the great Counsel, the Messenger of the great Counsel; so the Prophets called Him. Even He then, the Angel of the great Counsel, that is, the Messenger, shall send unto them that fear the Lord, and shall deliver them. Fear not then lest thou be hid: wheresoever thou hast feared the Lord, there doth that Angel know thee, who shall send to succour thee, and shall deliver thee. (Paragraph 10.)
However, in his
Exposition of Psalm XXXV, St. Augustine does not explicitly identify the angel of the Lord mentioned there as Christ.