1. Exposition

Roughly when was Jesus born?

Matthew 2:1 (ESV)

1 Now after Jesus was born in Bethlehem of Judea in the days of Herod the king, behold, wise men from the east came to Jerusalem,

Herod the Great died in 4 BC. Therefore, Jesus must have been born around 6 BC. Herod himself reckoned with two years between the birth of Christ and the visit of the wise men, who are introduced in the following verse.