Rev 21:17 | TNotes | STEP | 21:17 In the ancient world, walls were important not only to the defense and boundary of a city, but also to its status. That these walls are 216 feet thick (Greek 144 cubits ) indicates the strength of God’s redeemed people. The measurement of 144 cubits again uses a multiple of 12 to represent God’s people. A cubit was the length of a man’s forearm, with a standard length of about 18 inches.

‏ Revelation of John 21:17

21:17 ^a In the ancient world, walls were important not only to the defense and boundary of a city, but also to its status. That these walls are 216 feet thick (Greek 144 cubits) indicates the strength of God’s redeemed people. The measurement of 144 cubits again uses a multiple of 12 to represent God’s people. A cubit was the length of a man’s forearm, with a standard length of about 18 inches.