John Calvin on Luke 1:3-4

3. Having carefully examined all things The old translator has it, having followed out all things; Omnia assequuto. and the Greek verb παρακολουθεῖν is taken metaphorically from those who tread in the footsteps of others, that nothing may escape them. So that Luke intended to express his close and laborious investigation, just as Demosthenes employs the same word, when, in examining an embassy against which he brings an accusation, he boasts of his diligence to have been such, that he perceived every thing that had been done as well as if he had been a spectator.

LUKE 1:5-13

Luke 1:5-13

5. In the days of Herod, king of Judea, there was a certain priest named Zacharias, of the course of Abia; and his wife was of the daughters of Aaron, and her name was Elisabeth. 6. And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless. 7. And they had no child, because Elisabeth was barren, and they were now both at an advanced age. 8. And it happened, while he was discharging the priest's office in the order of his course before God, 9. According to the custom of the priest's office, it fell to him by lot to burn incense when he went into the temple of the Lord. 10. And the whole multitude of the people were praying without at the time of incense. 11. And an angel of the Lord appeared to him, standing at the right hand of the altar on which the incense was burning. 12. And Zacharias was troubled when he saw him, and fear fell upon him. 13. But the angel said to him, Fear not, Zacharias, for thy prayer is heard: and thy wife Elisabeth shall bear thee a son, and thou shalt call his name John.