Even a cursory survey of the Old and New Testaments reveal a unified truth: there is one "race" of people, with a variety of families, nations, ethnicities, and other definitions of people groups, who were dispersed by God, and who took up in diverse places across the earth. These people are precious to God. He promised that through Abraham, God would bring blessing to the entire earth, that is, to the one human race. God accomplished this through Israel, ethnic Jews of old, some faithful to God and some not; who became the birthing nation to the Messiah, our Lord Jesus Christ, who came to fulfill the Covenant, meet the demands of God's holy law, and live a sinless life offered on a cross. By faith in Jesus Christ, any human being who calls on the name of the Lord Jesus will be saved. By the grace of God alone and without human contribution to salvation, Jesus Christ's righteousness is imputed to our account, and Christ's atonement on the cross is accounted as sufficient to pay for our sins.
Here is a brief on the Bible and Race (with the author's emphases):
One Race (Genesis 1:26)
So God created man [ʾāḏām] in his own image, in the image of God he created him; male and female he created them.
Paradise Lost (Romans 5:12)
For the creation was subjected to futility, not willingly, but because of him who subjected it, in hope that the creation itself will be set free from its bondage to corruption and obtain the freedom of the glory of the children of God. For we know that the whole creation has been groaning together in the pains of childbirth until now. And not only the creation, but we ourselves, who have the first fruits of the Spirit, groan inwardly as we wait eagerly for adoption as sons, the redemption of our bodies.
Global Catastrophy (the Flood and the rebirth of humanity)
These are the generations of the sons of Noah, Shem, Ham, and Japheth. Sons were born to them after the flood. The sons of Japheth: Gomer, Magog, Madai, Javan, Tubal, Meshech, and Tiras. The sons of Gomer: Ashkenaz, Riphath, and Togarmah. The sons of Javan: Elishah, Tarshish, Kittim, and Dodanim. From these, the coastland peoples spread in their lands, each with his own language, by their clans, in their nations.
Babel and Human Migration (Genesis 11:4, 6, 8)
(The building of a great structure, prior to the rebellious desire for a unified front against God)
Then they said, “Come, let us build ourselves a city and a tower with its top in the heavens, and let us make a name for ourselves, lest we be dispersed over the face of the whole earth.”
And the Lord said, “Behold, they are one people, and they have all one language . . .
So the Lord dispersed them from there over the face of all the earth, and they left off building the city.
A Divine Covenant to the Earth (Genesis 12:3; John 3:16, 17)
. . . and in thee [Abraham's nation, Israel, and the land (their earthly home) that will bring forth the Messiah] shall all families of the earth be blessed.
“For God so loved the world, that he gave his only Son, that whoever believes in him should not perish but have eternal life. For God did not send his Son into the world to condemn the world, but in order that the world might be saved through him.
People Groups (Jeremiah 13:23; Acts 10:28; 17:26; Romans, 2:11; 10:12-13; Galatians 3:28; Colossians 3:11)
Can the Ethiopian change his skin or the leopard his spots? Then also you can do good who are accustomed to do evil.
And he said to them, “You yourselves know how unlawful it is for a Jew to associate with or to visit anyone of another nation, but God has shown me that I should not call any person common or unclean.
And he made from one man every nation of mankind to live on all the face of the earth, having determined allotted periods and the boundaries of their dwelling place,