be worthy

See: earn
References in classic literature ?
Not only did the chevalier have his own particular shells, but he cherished an ambitious desire which he pursued with a craft so profound as to be worthy of Sixtus the Fifth: he wanted to marry a certain rich old maid, with the intention, no doubt, of making her a stepping-stone by which to reach the more elevated regions of the court.
But I cannot be worthy and sit by as it all goes to hell.
I also believe that people who do get this wonderful country's citizenship should be worthy of it.