What does Genesis 21:28 mean?
Abraham has already given to Abimelech oxen and sheep as a sign of the formal covenant sealing their relationship. Abraham will live in the land of Abimelech's kingdom in good faith, dealing kindly with all and not again deceiving Abimelech, or his offspring. Part of this agreement deals with the rights to a well, which Abraham had dug (Genesis 21:25).Now Abraham sets aside seven additional sheep, ewe lambs, for a specific purpose related to this covenant. In the next verses, he will explain how these sheep will signify the true ownership of this well.