זֵיתִ֛ים יִהְי֥וּ לְךָ֖ בְּכָל־גְּבוּלֶ֑ךָ וְשֶׁ֙מֶן֙ לֹ֣א תָס֔וּךְ כִּ֥י יִשַּׁ֖ל זֵיתֶֽךָ׃
Thou shalt have olive-trees throughout all thy borders, but thou shalt not anoint thyself with the oil; for thine olives shall drop off.
Read kabbalistic (mystical) interpretation of Deuteronomy 28:40: and classical mystical sources.