Where did God take Paul for three years after his conversion?
God took Paul from Damascus to Mount Sinai, the same mountain where He gave Moses the Law. There, for three years in private, solitary training, God revealed to Paul the mysteries, the sphere of grace doctrine. This was a special revelation kept secret until then.
Les explains that after Saul's conversion, God took him out of Damascus, and Les feels it was to Mount Sinai, the same mountain where Moses received the Law. There, for three years, Paul received private, solitary seminary training, during which God revealed the mysteries—the whole sphere of grace doctrine. Les emphasizes this was strictly a Pauline revelation, not found in the Old Testament or the Gospels, and had been kept secret in the mind of God until revealed to Paul.