What Scripture forbids: acts of religious adoration toward creatures under any pretext
When Holy Scripture forbids us to adore creatures and serve them, it is not merely ruling out that we should take creatures for the first principle and last end and worship them in that capacity. It rules out our performing, on any pretext at all, acts of religious adoration toward them: calling on someone in public worship, singing him hymns, burning incense, dedicating churches and feast days, swearing by his name, making vows to him, and the like.
Latin
LXXII. Verum Scriptura sacra, dum creaturas adorare & illis servire prohibet, non vetat simpliciter ne creaturas agnoscamus ut primum principium atque ultimum finem, easque sub hac ratione colamus; sed ne quovis praetextu exerceamus erga illas adorationis religiosae actus, quales sunt aliquem publice invocare, hymnos illi canere, incensum adolere, aedes sacras & festos dies dicare, per nomen ejus jurare, vota illi nuncupare, & quae sunt similia.