Beloved, thou doest faithfully whatsoever thou doest to the brethren, and to strangers;
Ver. 5. Thou dost faithfully] That is, out of faith, and as beseemeth a faithful Christian. They that give alms, &c., and not out of faith, they do worse than lose their labour, for they commit sin.
And to strangers] Though they be not yet converted to the faith, and made brethren, thy liberality may work upon them, and win them, as Alban.