וְעַתָּה֙ הִשָּׁ֣מְרִי נָ֔א וְאַל־תִּשְׁתִּ֖י יַ֣יִן וְשֵׁכָ֑ר וְאַל־תֹּאכְלִ֖י כָּל־טָמֵֽא׃
Now therefore beware, I pray thee, and drink no wine nor strong drink, and eat not any unclean thing.
Read kabbalistic (mystical) interpretation of Judges 13:4: and classical mystical sources.