Do you see that faith was cooperating with his works, and that by means of works faith was brought to fulfillment
Other versions
King James Version
Seest thou how faith wrought with his works, and by works was faith made perfect? English Standard Version
You see that faith was active along with his works, and faith was completed by his works;New International Version
You see that his faith and his actions were working together, and his faith was made complete by what he did.