“Why do you ask My name,” the Angel of the Lord asked him, “since it is wonderful.”” (Judges 13:18, HCSB)

The “Angel of the Lord” drops an interesting hint here when he says that his name “is wonderful.”  The Faithlife Study Bible points out:

Its [the word “wonderful”] occurrence here on the lips of the Angel of Yahweh—Yahweh in human form (compare Exod 23:20–23)—provides a subtle connection with the notion that the Messiah would also be Yahweh embodied, since the same term appears in Isa 9:6 (pele yo’ets; “counselor of wonders”).

The child who will be born, upon whose shoulders the government will rest, who will be called “Mighty God,” “Everlasting Father,” and “Prince of Peace,” will also be known as the “Counselor of Wonders” [or Wonderful Counselor].  So there is a close connection between the Angel of the Lord and the coming Messiah.  Historically, the Church has believed that the Angel of the Lord is a pre-incarnate appearance of Christ himself!

This Man, who lived a perfect life and who died for our sins, who rose again to life victorious, marking himself as the firstfruits of resurrection which will extended to all who follow him by faith, of COURSE his name is Wonderful. What else could it be?