'Angels in Heaven' in the Bible

See that ye despise not one of these little ones; for I tell you, that their angels in heaven do continually appear in the presence of my father, who is in heaven:

For when they shall rise from the dead, they neither marry nor are given in marriage, but are as the angels in heaven.

But of THAT day and hour knoweth no one, not even the angels in heaven, nor the Son, but the Father only.