Expositor's Bible Commentary Commentary Romans 16:19

"For your obedience is come abroad unto all men. I rejoice therefore over you: but I would have you wise unto that which is good, and simple unto that which is evil." — Romans 16:19 (ASV)

Despite the warning, Paul affirms his confidence that his readers will be able to handle the situation (cf. 15:14). This assurance is based chiefly on their “obedience” (cf. 1:5; 6:16), which is so well known in the church at large as to make it almost inconceivable that there will be a failure in the matter under discussion. An appeal to one’s record always puts a person on his mettle. So Paul strikes a balance: on the one hand, he rejoices as he thinks of the good name of this congregation; on the other hand, he wants to make sure that they are discerning, able to spot trouble and avoid falling into it.