Therefore, swear by God that you will do no harm to me, and to my posterity, and to my stock. But according to the mercy that I have done to you, you will do to me and to the land, to which you have turned as a newcomer.
Other versions
King James Version
Now therefore swear unto me here by God that thou wilt not deal falsely with me, nor with my son, nor with my son's son: but according to the kindness that I have done unto thee, thou shalt do unto me, and to the land wherein thou hast sojourned. English Standard Version
Now therefore swear to me here by God that you will not deal falsely with me or with my descendants or with my posterity, but as I have dealt kindly with you, so you will deal with me and with the land where you have sojourned."New International Version
Now swear to me here before God that you will not deal falsely with me or my children or my descendants. Show to me and the country where you are living as an alien the same kindness I have shown to you."