Why God chose Paul to proselytize when he opposed Christ throughout his life on earth?

Mr , Iqbal , you know very well the answer , so please read the bible 2 Corinthians 11 ;14 and no wonder , for SaTAN himself transforms himself into angel of light , this is what he saw in the road to DAMAS , PAUL tell you the truth , will you believe ? i am the author of hidden truth of Christianity