וַיֹּ֤אמֶר לּוֹ֙ מַלְאַ֣ךְ יְהוָ֔ה לָ֥מָּה זֶּ֖ה תִּשְׁאַ֣ל לִשְׁמִ֑י וְהוּא־פֶ֛לִאי׃ (ס)
And the angel of the LORD said unto him: ‘Wherefore askest thou after my name, seeing it is hidden?’
Read halakhic rulings (Jewish law) on Judges 13:18: and classical halakhic sources.