And so it was, that, while they were there, the days were accomplished that she should be delivered.

People's New Testament

2:6 And so it was. Mary and Joseph, when journeying to Bethlehem, were probably ignorant of the fact that they were helping to fulfill the prophecy that pointed to Bethlehem as the birthplace of Christ.

Wesley's Notes

2:6 And while they were there, the days were fulfilled that she should be delivered - Mary seems not to have known that the child must have been born in Bethlehem, agreeably to the prophecy. But the providence of God took care for it.

Jamieson-Fausset-Brown Bible Commentary

6. while they were there, the days were accomplished that she should be delivered-Mary had up to this time been living at the wrong place for Messiah's birth. A little longer stay at Nazareth, and the prophecy would have failed. But lo! with no intention certainly on her part, much less of Cæsar Augustus, to fulfil the prophecy, she is brought from Nazareth to Bethlehem, and at that nick of time her period arrives, and her Babe is born (Ps 118:23). "Every creature walks blindfold; only He that dwells in light knows whether they go" [Bishop Hall].

Matthew Henry's Concise Commentary

2:1-7 The fulness of time was now come, when God would send forth his Son, made of a woman, and made under the law. The circumstances of his birth were very mean. Christ was born at an inn; he came into the world to sojourn here for awhile, as at an inn, and to teach us to do likewise. We are become by sin like an outcast infant, helpless and forlorn; and such a one was Christ. He well knew how unwilling we are to be meanly lodged, clothed, or fed; how we desire to have our children decorated and indulged; how apt the poor are to envy the rich, and how prone the rich to disdain the poor. But when we by faith view the Son of God being made man and lying in a manger, our vanity, ambition, and envy are checked. We cannot, with this object rightly before us, seek great things for ourselves or our children.