By works was faith made perfect?— Faith is not perfect, without producing good works, wherever there is an opportunity for it, after men have believed: but, in such an instance as that of the thief upon the cross, there is no opportunity for manifesting the truth of faith by a pious holy life; because he died so soon after he first believed. However, such instances are very rare, and not like the case of Christians in general.
Related Commentaries of James 2:22
James 2:22
22 Seest thou how faith wrought with his works, and by works was faith made perfect?