Judges 13:18

And the angel of Jehovah said unto him, Wherefore askest thou after my name, seeing it is wonderful?

Genesis 32:29

And Jacob asked him, and said, Tell me, I pray thee, thy name. And he said, Wherefore is it that thou dost ask after my name? And he blessed him there.

Isaiah 9:6

For unto us a child is born, unto us a son is given; and the government shall be upon his shoulder: and his name shall be called Wonderful, Counsellor, Mighty God, Everlasting Father, Prince of Peace.

Judges 13:6

Then the woman came and told her husband, saying, A man of God came unto me, and his countenance was like the countenance of the angel of God, very terrible; and I asked him not whence he was, neither told he me his name:

Treasury of Scripture Knowledge

Summary

And the angel of the LORD said unto him, Why askest thou thus after my name, seeing it is secret?

Bible References

Why askest

Judges 13:6
Then the woman came and told her husband, saying, A man of God came unto me, and his countenance was like the countenance of the angel of God, very terrible; and I asked him not whence he was, neither told he me his name:
Genesis 32:29
And Jacob asked him, and said, Tell me, I pray thee, thy name. And he said, Wherefore is it that thou dost ask after my name? And he blessed him there.

American Standard Version Public Domain