Paul told the Thessalonian Jews of his former zeal for the ceremonial law and of his wonderful experience at the gate of Damascus. Before his conversion he had been confident in a hereditary piety, a false hope. His faith had not been anchored in Christ; he had trusted instead in forms and ceremonies. His zeal for the law had been disconnected from faith in Christ and was of no avail. While boasting that he was blameless in the performance of the deeds of the law, he had refused the One who made the law of value. (AA 228.1) MC VC

But at the time of his conversion all had been changed. Jesus of Nazareth, whom he had been persecuting in the person of His saints, appeared before him as the promised Messiah. The persecutor saw Him as the Son of God, the one who had come to the earth in fulfillment of the prophecies and who in His life had met every specification of the Sacred Writings. (AA 228.2) MC VC

As with holy boldness Paul proclaimed the gospel in the synagogue at Thessalonica, a flood of light was thrown upon the true meaning of the rites and ceremonies connected with the tabernacle service. He carried the minds of his hearers beyond the earthly service and the ministry of Christ in the heavenly sanctuary, to the time when, having completed His mediatorial work, Christ would come again in power and great glory, and establish His kingdom on the earth. Paul was a believer in the second coming of Christ; so clearly and forcibly did he present the truths concerning this event, that upon the minds of many who heard there was made an impression which never wore away. (AA 228.3) MC VC