@OJMCKEE Great question The short answer is that God chose Israel to be a light to the nations through whom He would redeem a fallen humanity. The big story of the Bible is about God redeeming mankind.
If we read Deuteronomy 7, God makes it clear that He did not choose Israel because of any attribute they possessed, but instead to keep His covenant with Abraham and to make them a light to the nations. In the New Testament, Paul says that God chose the weak things to shame the strong and the foolish things to shame the wise. I think that may give us some idea why He chose Israel
1 Corinthians 1:26-31 - Brothers and sisters, think of what you were when you were called. Not many of you were wise by human standards; not many were influential; not many were of noble birth. 27 But God chose the foolish things of the world to shame the wise; God chose the weak things of the world to shame the strong. 28 God chose the lowly things of this world and the despised things—and the things that are not—to nullify the things that are, 29 so that no one may boast before him. 30 It is because of him that you are in Christ Jesus, who has become for us wisdom from God—that is, our righteousness, holiness and redemption. 31 Therefore, as it is written: “Let the one who boasts boast in the Lord.”
Genesis 22:15-18 - The angel of the Lord called to Abraham from heaven a second time 16 and said, “I swear by myself, declares the Lord, that because you have done this and have not withheld your son, your only son, 17 I will surely bless you and make your descendants as numerous as the stars in the sky and as the sand on the seashore. Your descendants will take possession of the cities of their enemies, 18 and through your offspring all nations on earth will be blessed, because you have obeyed me.”
Deuteronomy 7:6-11 - For you are a people holy to the Lord your God. The Lord your God has chosen you out of all the peoples on the face of the earth to be his people, his treasured possession.
7 The Lord did not set his affection on you and choose you because you were more numerous than other peoples, for you were the fewest of all peoples. 8 But it was because the Lord loved you and kept the oath he swore to your ancestors that he brought you out with a mighty hand and redeemed you from the land of slavery, from the power of Pharaoh king of Egypt. 9 Know therefore that the Lord your God is God; he is the faithful God, keeping his covenant of love to a thousand generations of those who love him and keep his commandments. 10 But
those who hate him he will repay to their face by destruction;
he will not be slow to repay to their face those who hate him.
11 Therefore, take care to follow the commands, decrees and laws I give you today.