In AV 'ability' is either material (Le 27:8; Ezr 2:69; Ac 11:29) or personal (Da 1:4; Mt 25:15) capacity. The mod. meaning ('mental power') is not found in AV.
He gave one five thousand dollars, and another two thousand, and another one thousand; to each according to his ability. Then he went away.
The disciples determined to make up a contribution, each according to his ability, and send it to the brothers who lived in Judea,