וַיֹּ֛אמֶר מַלְאַ֥ךְ יְהוָ֖ה אֶל־מָנ֑וֹחַ מִכֹּ֛ל אֲשֶׁר־אָמַ֥רְתִּי אֶל־הָאִשָּׁ֖ה תִּשָּׁמֵֽר׃
And the angel of the LORD said unto Manoah: ‘Of all that I said unto the woman let her beware.
Read kabbalistic (mystical) interpretation of Judges 13:13: and classical mystical sources.