If I'm understanding your reply, you're saying when Jesus said those in heaven rejoice at our repentance he was speaking of angels?
That the angels are aware of us then?
Is that a correct stating of your interpretation?
Take heed that ye despise not one of these little ones; for I say unto you, That in heaven their angels do always behold the face of my Father which is in heaven.
Every Christian has an angel in Heaven
Ofcourse,the Elect angels are coming and going on earth and have alot to do on Earth, performing God's will.
We saw angels helping Christ after his temptation (Matt.4:11).
We also saw that when John fell down to worship an angel he was rebuked by the angel for doing so, since the angel was a fellow servant (Rev.22:8-9)