Why is the name El Shaddai important? - Genesis 17:1-8 NKJV

Genesis 17:1-8 New King James Version

 

17 When Abram was ninety-nine years old, the Lord appeared to Abram and said to him, “I am Almighty God; walk before Me and be blameless. ² And I will make My covenant between Me and you, and will multiply you exceedingly.” ³ Then Abram fell on his face, and God talked with him, saying: ⁴ “As for Me, behold, My covenant is with you, and you shall be a father of many nations. ⁵ No longer shall your name be called Abram, but your name shall be Abraham; for I have made you a father of many nations. ⁶ I will make you exceedingly fruitful; and I will make nations of you, and kings shall come from you. ⁷ And I will establish My covenant between Me and you and your descendants after you in their generations, for an everlasting covenant, to be God to you and your descendants after you. ⁸ Also I give to you and your descendants after you the land in which you are a stranger, all the land of Canaan, as an everlasting possession; and I will be their God.”