I understood that, but there is no correlation between fifteen hundred years and the verses you quoted.
You asked the question "WHY WOULD GOD DEVISE A THEOLOGY THAT HE WOULD HAVE KNOWN FOR AN ABSOLUTE FACT WOULD BE IMPOSSIBLE TO IMPLEMENT FOR FIFTEEN HUNDRED YEARS?". The verses quoted demonstrate that God's reasons and timing are known to Him and if it 40 days, 40 years, 400 years, 2000 years or 1500 years, in the fullness of His time His truth is revealed.