What Does Psalms 129:6 Mean?

The judgment continues with agricultural metaphor: 'Let them be as the grass upon the housetops, which withereth afore it groweth up.' The comparison to 'grass upon housetops' describes something that appears to thrive briefly but has no sustaining root. Ancient flat roofs could sprout grass from windblown seeds, but shallow soil meant quick withering. The phrase 'withereth afore it groweth up' emphasizes premature death - before reaching maturity or producing fruit. This pictures enemies' apparent success as temporary and superficial. They may appear strong initially, but lacking deep roots, they quickly perish. The imagery promises that opposition to Zion, though sometimes appearing successful, will ultimately fail and disappear without accomplishing its purpose.