Origen grants angels only the honor of praise and imitation
So Origen, pressed by Celsus's objections that Christians despised the servants of the supreme God and the angelic powers and gave them no honor at all, grants that no other honor is to be given them than the honor that consists in praise and imitation. "We call them blessed," he says, "and we speak well of those to whom God has entrusted the welfare of human beings, yet we do not give them the honor owed to God." (Against Celsus the Philosopher, book 8, cited several times already.)
In the passage from book 5 of the same work quoted above, he also states that we are to imitate the angels as far as human nature allows, and that this will be enough for those blessed spirits to wish us well and to take pains for us in everything. But nowhere does he mention that we solicit their prayers by praying to them, or that any of the things used in the Roman Church today are done in their honor, though that would have served his purpose best and would have refuted the pagan slander even more fully.
Latin
LXIX. Itaque Origenes pulsatus Celsi objectionibus, quasi Christiani summi Dei Ministros, & Angelicas potestates contemnerent, & nullo honore prosequerentur, non alium honorem illis exhibendum esse concedit, quam eum qui consistit in laude & imitatione: Eos, inquit, praedicamus beatos, & bene loquimur de illis, quibus a Deo commissae sunt utilitates hominum, non tamen honorem Deo debitum his reddimus. Saepius jam citato libro adversus Celsum Philosophum octavo. Ac praeterea loco quem supra descripsimus ex libro quinto ejusdem operis, affirmat Angelos, quantum humana natura fert, nobis imitandos esse; idque satis fore ut beati illi Spiritus bene nobis velint, & pro nobis in omnibus satagant: sed nullibi, quod tamen ad ejus scopum maxime fecisset, & calumniam Ethnicorum plenius adhuc retudisset, memorat nos eorum orationes precibus ambire, aut quicquam eorum quae in Ecclesia Romana hodie usitata sunt, in eorum honorem fieri.