and might reconcile them both in one body unto God through the cross, having slain the enmity thereby:

and reconciling both of them to God in one body through the cross, by which He extinguished their hostility.

and might reconcile both in one body to God through the cross, having slain the enmity in it,

and might reconcile both in one body toGod by the cross, having by it slain the enmity;