LXX Gen 21:23

νῦν οὖν ὄμοσόν μοι τὸν θεόν, μὴ ἀδικήσειν με μηδὲ τὸ σπέρμα μου μηδὲ τὸ ὄνομά μου· ἀλλὰ κατὰ τὴν δικαιοσύνην ἣν ἐποίησα μετὰ σοῦ ποιήσεις μετ’ ἐμοῦ, καὶ τῇ γῇ ᾗ σὺ παρῴκησας ἐν αὐτῇ.

Now, therefore, swear to me here before God that you will not deal falsely with me or my children or descendants. Show to me and to the country in which you reside the same kindness that I have shown to you.”