Ark of the Covenant - Bible History Online
Bible History

Naves Topical Bible Dictionary

TOWER, As fortress

Matthew 21:33

33. Hear another parable: There was a certain householder, which planted a vineyard, and hedged it round about, and digged a winepress in it, and built a TOWER, and let it out to husbandmen, and went into a far country:

TOWER-As fortress TOWER in Naves Topical Bible (Bible History Online)