NET
15 Those who accompanied Paul escorted him as far as Athens, and after receiving an order for Silas and Timothy to come to him as soon as possible, they left.
Darby
15 But they that conducted Paul brought him as far as Athens; and, having received a commandment to Silas and Timotheus, that they should come to him as quickly as possible, they departed.
KJV
15 And they that conducted Paul brought him unto Athens: and receiving a commandment unto Silas and Timotheus for to come to him with all speed, they departed.