I will speak - That is, in my acts of praise. I will not be ashamed to be known as his worshipper; I will publicly declare my belief in his existence, his greatness, his goodness.
Of the glorious honor of thy majesty - The glory of the honor of thy majesty. This accumulation of epithets shows that the heart of the psalmist was full of the subject, and that he labored to find language to express his emotions. It is beauty; it is glory; it is majesty: it is all that is great, sublime, wonderful - all combined - all concentrated - in one Being.
And of thy wondrous works - Margin, “things,” or “words.” The reference is to wondrous deeds or acts considered as the subject of discourse or praise.