a.dar describes glory attributed to the LORD and his right hand, and instruction being made glorious.

In Exodus, the participial forms describe the LORD and his right hand in clauses of praise; Isaiah uses an imperfect form for making instruction glorious.

1. Glory attributed in praise · dominant

   In Exodus 15:6, the Niphal participle occurs with the LORD's right hand as it shatters the enemy; the APB renders the clause, "Your right hand, O LORD, is glorious in strength." In Exodus 15:11, the same participial stem occurs in the question of who is like the LORD among the gods, where the APB renders "glorious in holiness."

   Exodus 15:6Exodus 15:11
2. Making instruction glorious · occasional

   In Isaiah 42:21, the Hiphil imperfect occurs in the clause about the LORD's purpose concerning instruction; the APB renders, "he will magnify instruction and make it glorious."

   Isaiah 42:21

In the Anselm Project Bible: The APB uses "glorious" in the Exodus praise clauses and in Isaiah's clause about instruction. These renderings indicate the verse-level presentation rather than a fixed English equivalent.