NET
12 So now, promise me this with an oath sworn in the Lord’s name. Because I have shown allegiance to you, show allegiance to my family. Give me a solemn pledge
Darby
12 And now, I pray you, swear to me by Jehovah, since I have dealt kindly with you, that ye will also deal kindly with my father's house, and give me a certain sign,
KJV
12 Now therefore, I pray you, swear unto me by the LORD, since I have shewed you kindness, that ye will also shew kindness unto my father's house, and give me a true token: