A king's public standing grows as a direct result of experiencing God's salvation. When a person is saved, their honor naturally increases [אבן עזרא]. The primary approach among commentators is that this growth is an active, ongoing process [מאירי]. As God delivers the king from his enemies and grants him success in battle, his honor magnifies in the eyes of the nations. The entire world pays him respect, recognizing clearly that his victories and salvation come directly from God [רד״ק, מצודת דוד, ביאור שטיינזלץ]. From a historical perspective, this reflects the life of King David. Following the death of Saul, David's honor grew immensely as he was anointed by all of Israel and secured major military victories [מלבי״ם].
Beyond public honor, God actively grants majesty and splendor to the king. The primary approach among commentators is that God places or drapes these royal qualities over him. A different perspective suggests that this gift is a matter of perfect equivalence, meaning the majesty God gives the king is exactly fitting and appropriate for his righteous deeds [מלבי״ם].
On a deeper, forward-looking level, this royal glory points toward the future Messiah. In this view, the majesty and splendor are not merely a physical crown resting on a head, but a profound spiritual abundance that completely envelops the Messiah like a garment. This spiritual clothing is the very same majesty and splendor that God Himself metaphorically wore during the creation of the world. In the future, the Messiah will wrap himself in this Divine light to repair the spiritual damage brought into the world by the first man, ultimately restoring creation to its original, flawless state [אלשיך].