A.T. Robertson Commentary Romans 16:10

"Salute Apelles the approved in Christ. Salute them that are of the [household] of Aristobulus." — Romans 16:10 (ASV)

Apelles (Απελλην). A name among Jews and a famous tragic actor also.

The approved (τον δοκιμον). The tried and true (1 Corinthians 11:19; 2 Corinthians 10:18; 2 Corinthians 13:7).

Them which are of the household of Aristobulus (τους εκ των Αριστοβουλου). The younger Aristobulus was a grandson of Herod the Great. Lightfoot suggests that some of the servants in this household had become Christians, Aristobulus being dead.