At that time Abimelech, with Phicol the commander of his army, said to Abraham, “God is with you in all that you do; now therefore swear to me here by God that you will not deal falsely with me or with my offspring or with my posterity, but as I have dealt loyally with you, you will deal with me and with the land where you have resided as an alien.” And Abraham said, “I swear it.”

Therefore that place was called Beer-sheba, because there both of them swore an oath. When they had made a covenant at Beer-sheba, Abimelech, with Phicol the commander of his army, left and returned to the land of the Philistines. Abraham planted a tamarisk tree in Beer-sheba and there called on the name of the Lord, El Olam. And Abraham resided as an alien many days in the land of the Philistines. —Genesis 21:22-24 & 31-34

O Lord, my heart is not lifted up;
  my eyes are not raised too high;
I do not occupy myself with things
  too great and too marvelous for me.
But I have calmed and quieted my soul,
  like a weaned child with its mother;
  my soul is like the weaned child that is with me.
O Israel, hope in the Lord
  from this time on and forevermore. —Psalm 131