And the Holy Ghost also beareth witness to us (marturei de hēmin kai to pneuma to hagion). Martureō is common in Philo for Scripture quotation. The author confirms his interpretation of Psa 40:7-9 by repeating from Jeremiah (Jer 31:31.) what he had already quoted (Heb 8:8-12).
After he hath said (meta to eirēkenai). Accusative case after meta of the articular infinitive perfect active, “after the having said.”