"sand" or "sandy ground," describes (a) an insecure foundation, Matthew 7:26; (b) numberlessness, vastness, Romans 9:27; Hebrews 11:12; Revelation 20:8; (c) symbolically in Revelation 13:1 , RV, the position taken up by the Dragon (not, as in the AV, by John), in view of the rising of the Beast out of the sea (emblematic of the restless condition of nations; see SEA).
With over 3,400 entries, this timeless classic is THE reference guide to New Testament Greek words for English readers. It explains the meaning of the original Greek with the added dimension of the context of the Greek word.Wikipedia
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