The book of revelation has about 400 verses, and scholars say those verses contain around 550 allusions to Old Testament passages.
But hereâ€™s the thing, John doesnâ€™t include a single quotationÂ of the Old Testament. He only uses allusions. This means that his writing, his thoughts, his spirituality literally bleeds with an deep, abiding knowledge of the Scriptures.
viaÂ John Dyer