sunupokrinomai describes joining others in hypocrisy, as the rest of the Jews did with him.

The attested use describes a group joining another person in hypocrisy: in Galatians 2:13, the rest of the Jews are said to have done so with him.

1. Joining others in hypocritical conduct · dominant

   In Galatians 2:13, the plural aorist passive indicative form refers to the rest of the Jews acting with him in hypocrisy; the APB renders the clause, "the rest of the Jews joined him in hypocrisy."

   Galatians 2:13

In the Anselm Project Bible: In Galatians 2:13, the APB presents the action as "joined him in hypocrisy." This rendering confirms the clause's overall sense rather than isolating every element of the Greek form.