Verses with the word herein in the Old Testament (2 verses):
Only herein will the men consent unto us for to dwell with us, to be one people, if every male among us be circumcised, as they are circumcised.
2 Chronicles 16:9
For the eyes of the LORD run to and fro throughout the whole earth, to shew himself strong in the behalf of them whose heart is perfect toward him. Herein thou hast done foolishly: therefore from henceforth thou shalt have wars.