'Allegiance' in the Bible

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

The men said to her, "If you die, may we die too! If you do not report what we've been up to, then, when the Lord hands the land over to us, we will show unswerving allegiance to you."