'Unable' in the Bible

and the priests were unable to complete their duties because of the cloud, since the glory of the LORD had filled God's Temple.

The priests were unable to enter the Lord's temple because the Lord's splendor filled the Lord's temple.

Their descendants remained in the land (the Israelites were unable to wipe them out). Solomon conscripted them for his work crews and they continue in that role to this very day.

Solomon answered all her questions; nothing was hidden from him which he did not make clear to her.

Then worthless and wicked men gathered around him to resist Rehoboam son of Solomon when Rehoboam was young, inexperienced, and unable to assert himself against them.

Eliezer son of Dodavahu from Mareshah prophesied against Jehoshaphat, "Because you made an alliance with Ahaziah, the Lord will shatter what you have made." The ships were wrecked and unable to go to sea.

As a result, the Lord became angry with Amaziah and sent a prophet to him, who asked him, "Why did you seek the gods of a people who were unable to deliver their own nation from you?"

Because there weren't enough priests, they were unable to prepare all the burnt offerings until other priests came forward after having consecrated themselves, so their descendant of Levi relatives assisted them until the services were complete. (The descendants of Levi had been more conscientious in consecrating themselves than had been the priests.)

but they had been unable to celebrate it then because not enough priests had consecrated themselves and the people had not yet been gathered together in Jerusalem.