7:12 saying, "Amen, blessing and glory and wisdom and thanksgiving and honor and power and might, be to our God forever and ever. Amen."

saying,

This is audible speaking it, not mentally thinking it. This indicates that worship prayers should be spoken and not just thought.

"Amen,"

"Amen."

The AMENS bracket the sevenfold doxology. The angels agree entirely with the multitude.

In the original version, each attribute is preceded by "the" as shown here. This gives the sense of all or complete. For example, "the power" means all powerful.

The () denotes the order of these attributes as found in Revelation 5:12. There may be some significance to the order; however, this is not clear. This listing goes from praise words (blessing and glory) to strength words (power and might). The recipient here is GOD (be to our GOD) while in Revelation 5:12, the recipient is Jesus (Worthy is the LAMB).