Matthew mentions Jesus’ birth took place in a house, while Luke says it was in a manger.
“And when they were come into the house, they saw the young child with Mary his mother, and fell down, and worshiped him: and when they had opened their treasures, they presented unto him gifts; gold, and frankincense, and myrrh.”
Matthew 2:11 (AKJV)
“And she brought forth her firstborn son, and wrapped him in swaddling clothes, and laid him in a manger; because there was no room for them in the inn.”
Luke 2:7 (AKJV)