Hosea 2:6

“Therefore, behold, I will hedge up your way with thorns, and I will build a wall against her, that she shall not find her paths.”

And the consequence was to be that the way to her lovers would be blocked. Thorn hedges would block the way, forming a wall which would prevent her from finding her path. The high places would become a wilderness, because she would have been taken far away. The brief change from third person to second person (‘I will hedge up YOUR way with thorns' rather than ‘HER way') is deliberate, the sudden change reflecting God's anger and the personal nature of His judgment.