'Able' in the Bible

"The Lord who rules over all says, 'If you live and work according to my requirements, you will be able to preside over my temple and attend to my courtyards, and I will allow you to come and go among these others who are standing by you.

"Rejoice greatly, daughter of Zion; cry out, daughter of Jerusalem! Look! Your king is coming to you. He is righteous, and he is able to save. He is humble, and is riding on a colt, the foal of a donkey.