If you want to know what the Bible has to say about racism and other forms of discrimination, just search for words like “favouritism” and “partiality” and you’ll find more than enough.
Consider for instance Deuteronomy 10:17-18 which says, “For the Lord your God is God of gods and Lord of lords, the great God, mighty and awesome, who shows no partiality and accepts no bribes. He defends the cause of the fatherless and the widow, and loves the foreigner residing among you, giving them food and clothing.” There’s no room for racism here in the law of Moses. Nor is the New Testament any less insistent. In passages like Acts 10:34 and Romans 2:11 we are explicitly told that “God does not show favouritism” and cares for foreigners every bit as much as the Hebrews.
Other forms of discrimination, like classism, are also forbidden. Consider James 2:2-4 where we are told, “believers in our glorious Lord Jesus Christ must not show favouritism. Suppose a man comes into your meeting wearing a gold ring and fine clothes, and a poor man in filthy old clothes also comes in. If you show special attention to the man wearing fine clothes and say, ‘Here’s a good seat for you,’ but say to the poor man, ‘You stand there’ or ‘Sit on the floor by my feet,’ have you not discriminated among yourselves and become judges with evil thoughts?” We are explicitly told this is evil.