Deuteronomy 3:5

All these were cities fortified with high walls, gates, and bars; besides the unwalled towns a great many.

Numbers 13:28

Howbeit the people that dwell in the land are strong, and the cities are fortified, and very great: and moreover we saw the children of Anak there.

Deuteronomy 1:28

Whither are we going up? our brethren have made our heart to melt, saying, The people are greater and taller than we; the cities are great and fortified up to heaven; and moreover we have seen the sons of the Anakim there.

Hebrews 11:30

By faith the walls of Jericho fell down, after they had been compassed about for seven days.

Treasury of Scripture Knowledge

Summary

All these cities were fenced with high walls, gates, and bars; beside unwalled towns a great many.

Bible References

General references

Deuteronomy 1:28
Whither are we going up? our brethren have made our heart to melt, saying, The people are greater and taller than we; the cities are great and fortified up to heaven; and moreover we have seen the sons of the Anakim there.
Numbers 13:28
Howbeit the people that dwell in the land are strong, and the cities are fortified, and very great: and moreover we saw the children of Anak there.
Hebrews 11:30
By faith the walls of Jericho fell down, after they had been compassed about for seven days.

American Standard Version Public Domain