John 1:51
And he said to him, I tell you most truly, you shall see heaven opened and the angels of God ascending and descending upon the Son of man.
2 Corinthians 3:18
And we all with unvailed face beholding as in a glass the glory of the Lord, are transformed into the same likeness, from glory to glory, as by the Spirit of the Lord.
Ephesians 3:10
that now to the principalities and powers in the heavenly [worlds] should be made known, through the church, the manifold wisdom of God,
Philippians 3:8
But for the same reason also I consider all things to be a loss on account of the excellency of the knowledge of Christ Jesus my Lord, for whose sake I have suffered the loss of all things, and consider them worthless that I may gain Christ
1 Timothy 3:16
And confessedly great is the mystery of piety; [Christ,] who was manifested in the flesh, was justified in the spirit, was seen by angels, was preached to the nations, was believed on in the world, was received up into glory.
Hebrews 1:14
Are they not all ministering spirits, sent forth to serve on account of those who are about to inherit salvation?
1 Peter 1:12
to whom it was revealed that they ministered not to themselves but to us those things which have now been declared to you by those who preached to you the good news, with the Holy Spirit sent from heaven, into which the angels desire to look.