'Able' in the Bible

So give Your servant an obedient heart to judge Your people and to discern between good and evil. For who is able to judge this great people of Yours?”

“You know my father David was not able to build a temple for the name of Yahweh his God. This was because of the warfare all around him until the Lord put his enemies under his feet.

and because of the cloud, the priests were not able to continue ministering, for the glory of the Lord filled the temple.