'Angels of God' in the Bible

For at the resurrection, they neither marry, nor are given in marriage, but are as the angels of God in heaven.

But I tell you, Every one who shall confess me before men, him will the Son of man also confess before the angels of God:

but he that disowns me before men, shall be disowned before the angels of God.

Even so, I tell you, there is joy among the angels of God, over one repentant sinner.

And he saith to him, Verily, verily, I tell you, From henceforth ye shall see heaven opened, and the angels of God ascending and descending upon the Son of man.

And again, when he introduces the first-begotten into the world, he saith, "Let all the angels of God also worship him."