חֹפֵ֥ר גּוּמָּ֖ץ בּ֣וֹ יִפּ֑וֹל וּפֹרֵ֥ץ גָּדֵ֖ר יִשְּׁכֶ֥נּוּ נָחָֽשׁ׃
He that diggeth a pit shall fall into it; and whoso breaketh through a fence, a serpent shall bite him.
Read kabbalistic (mystical) interpretation of Ecclesiastes 10:8: and classical mystical sources.