1. Isaiah 19:19 (ESV)
  2. Exposition

Why is the pillar specifically at the border of Egypt?

Isaiah 19:19 (ESV)

19 In that day there will be an altar to the LORD in the midst of the land of Egypt, and a pillar to the LORD at its border.

When someone left Judah and crossed the border, they would see that Egypt also belonged to the Lord.