While the Apostle Paul never makes any direct reference to the famous Lukan Day of Pentecost (Acts 2) it is most evident that he understands the primary contrast between the Old and New Covenant to be the Spirit (esp. in Galatians). The Day of Pentecost is associated with the Jewish holiday of Shavuot. According to Jewish tradition it was at Passover that Israel was delivered and it was at Pentecost/Shavuot that Israel was given the Law solidifying their status as the people of God. In the Christian tradition Passover is fulfilled through the Passion of Messiah and the people of God are redefined through the incoming of the Holy Spirit at Pentecost.
Would such a story have shaped Paul’s understanding of the Law? I know those prophets like Ezekiel and Jeremiah who speak of the New Covenant using Spirit-language were influential, but what about this event? The Book of Acts is the only place where this story is recalled; can we find it as an underlining influence upon Paul as well, or is this asking too much?