'Angels' in the Bible

And great, we confess, is the mystery [the hidden truth] of godliness:He (Jesus Christ) who was revealed in human flesh,Was justified and vindicated in the Spirit,Seen by angels,Preached among the nations,Believed on in the world,Taken up in glory.

I solemnly charge you in the presence of God and of Christ Jesus and of His chosen angels that you guard and keep these rules without bias, doing nothing out of favoritism.