Matthew 7:1-5
Judging Others 
1 "Do not judge, or you too will be judged. 2 For in the same way you judge others, you will be judged, and with the measure you use, it will be measured to you. 
 3 "Why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye? 4 How can you say to your brother, 'Let me take the speck out of your eye,' when all the time there is a plank in your own eye? 5 You hypocrite, first take the plank out of your own eye, and then you will see clearly to remove the speck from your brother's eye. 

Acts 10:34-36
34 Then Peter began to speak: "I now realize how true it is that God does not show favoritism 35 but accepts men from every nation who fear him and do what is right. 36 You know the message God sent to the people of Israel, telling the good news of peace through Jesus Christ, who is Lord of all.

Galatians 3:26-29
26 You are all sons of God through faith in Christ Jesus, 27 for all of you who were baptized into Christ have clothed yourselves with Christ. 28 There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus. 29 If you belong to Christ, then you are Abraham's seed, and heirs according to the promise.

Ephesians 2:11-22
One in Christ 
11 Therefore, remember that formerly you who are Gentiles by birth and called "uncircumcised" by those who call themselves "the circumcision" (that done in the body by the hands of men)— 12 remember that at that time you were separate from Christ, excluded from citizenship in Israel and foreigners to the covenants of the promise, without hope and without God in the world. 13 But now in Christ Jesus you who once were far away have been brought near through the blood of Christ. 
14 For he himself is our peace, who has made the two one and has destroyed the barrier, the dividing wall of hostility, 15 by abolishing in his flesh the law with its commandments and regulations. His purpose was to create in himself one new man out of the two, thus making peace, 16 and in this one body to reconcile both of them to God through the cross, by which he put to death their hostility. 17 He came and preached peace to you who were far away and peace to those who were near. 18 For through him we both have access to the Father by one Spirit. 

19 Consequently, you are no longer foreigners and aliens, but fellow citizens with God's people and members of God's household, 20 built on the foundation of the apostles and prophets, with Christ Jesus himself as the chief cornerstone. 21 In him the whole building is joined together and rises to become a holy temple in the Lord. 22 And in him you too are being built together to become a dwelling in which God lives by his Spirit.

Colossians 3:5-11
5 Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry. 6 Because of these, the wrath of God is coming. 7 You used to walk in these ways, in the life you once lived. 8 But now you must rid yourselves of all such things as these: anger, rage, malice, slander, and filthy language from your lips. 9 Do not lie to each other, since you have taken off your old self with its practices 10 and have put on the new self, which is being renewed in knowledge in the image of its Creator. 11 Here there is no Greek or Jew, circumcised or uncircumcised, barbarian, Scythian, slave or free, but Christ is all, and is in all. 

James 2:1-13
Favoritism Forbidden 
1 My brothers, as believers in our glorious Lord Jesus Christ, don't show favoritism. 2 Suppose a man comes into your meeting wearing a gold ring and fine clothes, and a poor man in shabby clothes also comes in. 3 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," 4 have you not discriminated among yourselves and become judges with evil thoughts?

5 Listen, my dear brothers: Has not God chosen those who are poor in the eyes of the world to be rich in faith and to inherit the kingdom he promised those who love him? 6 But you have insulted the poor. Is it not the rich who are exploiting you? Are they not the ones who are dragging you into court? 7 Are they not the ones who are slandering the noble name of him to whom you belong? 

8 If you really keep the royal law found in Scripture, "Love your neighbor as yourself," you are doing right. 9 But if you show favoritism, you sin and are convicted by the law as lawbreakers. 10 For whoever keeps the whole law and yet stumbles at just one point is guilty of breaking all of it. 11 For he who said, "Do not commit adultery," also said, "Do not murder." If you do not commit adultery but do commit murder, you have become a lawbreaker. 

12 Speak and act as those who are going to be judged by the law that gives freedom, 13 because judgment without mercy will be shown to anyone who has not been merciful. Mercy triumphs over judgment!