I’ve never been interested in angels or angelology. Rather, I never was interested until I read the following quote in Isaac Ambrose’s Looking Unto Jesus:

But what is this presence of Christ in church-assemblies?
…
If by Christ’s presence, we mean the presence of his angels, I shall then say, we have said enough; as a king is said to be where his court is, where his train or retinue are, so Christ, the King of kings, is there especially present, where the heavenly guard, the blessed angels keep their sacred station and rendezvous, wheresoever it is. Now, that this is Christ’s special presence, it will appear in Sundry texts [with references including Gen 28:16,17, Acts vii.53, Gal. iii.19., Heb. ii. 2, Deut 33:2, Ps 68:17, 1 Cor. xi. 10.]

It is very worthwhile to read the context (and the whole book is one of my all time favorites!!), but in sum, Ambrose points at that in some senses the Presence of God is independent from the angels, but in another sense they always go together.

God is omnipresent while angels are not. God’s Spirit indwells His people with new life and sanctification power, which angels do not do.

And yet(!), when God manifests His special Glory-Presence (the “shekinah” and “kavod” that we read about in association with the tabernacle and temple) He comes as king. And whenever a king acts in his official capacity he never stands, sits, or travels alone, but rather is attended by the members of his court. The more glorious the king, the more glorious the retinue of attendants surrounding him.

Now consider the heavenly throne room pictured in Ezek 1, Dan 7, and especially Rev 4-5. Concentric circles of living creatures, angels, and saints surround the divine throne. If you want to see God in all His majesty, you can’t cut out the rest of the picture. The King is never without His entourage!

Moreover, when Scripture speaks of the movements of God—when He comes and goes and arrives and leaves—the “chariots of God” are either some sort of angelic beings themselves (e.g. cherubs) or are driven/supported by them (consider Ps 18:10, 68:17, Ezek 1, etc.). The upshot, as I see it, is that if you want the Presence of God to come to your local church, His Presence will only manifest in a manner commensurate with Ex 40/1 Kings 8/Acts 2 majesty if your church is overseen by one of those city-angels that Rev 2-3 talks about.

Speaking personally, more than anything I desire the Presence of God. Therefore angels matter, as does any Scriptural indication of actions, attitudes, or patterns of behavior that might harmonize with or contradict the work assignment of those angels and thereby affect the Presence of God among us.