Matthew 2:19

But when Herod was dead, behold, an angel of the Lord appeareth in a dream to Joseph in Egypt,

Matthew 1:20

and when he was thinking on these things, behold an angel of the Lord appeared to him in a dream, saying, Joseph thou Son of David, scruple not to take unto thee Mary thy wife; for that which is conceived in her is from the Holy Spirit.

Matthew 2:12-13

And being warned of God in a dream not to return to Herod, they went back into their own country another way.

Matthew 2:22

but when he heard that Archelaus reigned over Judea in the room of Herod his father, he was afraid to go thither; however being warned of God in a dream, he retired into the district of Galilee.

Treasury of Scripture Knowledge

Summary

But when Herod was dead, behold, an angel of the Lord appeareth in a dream to Joseph in Egypt,

Bible References

An

Matthew 2:13
And when they were departed, behold an angel of the Lord appeareth to Joseph in a dream, saying, Rise and take the child and his mother, and flee into Egypt, and continue there, untill I tell thee to return: for Herod will seek the child to destroy Him.
Matthew 1:20
and when he was thinking on these things, behold an angel of the Lord appeared to him in a dream, saying, Joseph thou Son of David, scruple not to take unto thee Mary thy wife; for that which is conceived in her is from the Holy Spirit.