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20 And hallow my sabbaths; and they shall be a sign between me and you, that ye may know that I am the LORD your God.
In Genesis 22:4, this signifies to foresee. (Arcana Coelestia 2790)
7 Yahweh appeared to Abram and said, "I will give this land to your seed." He built an altar there to Yahweh, who appeared to him.