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.
To one he gave five talents; to another, two; and to another, one; to each one, according to his own ability, and immediately left his country.
And every one of the disciples determined, as he had the means, to send relief to the brethren that dwelt in Judea;