We often do not give serious attention to the "little" sins in our lives, such as the sin of partiality. But the Bible takes the showing of partiality seriously. James addresses this issue in chapter 2 of his epistle. 

"My brethren, do not hold the faith of our Lord Jesus Christ, the Lord of glory, with partiality." James 2:1

A sermon from James 2:1–13.

"for in Christ Jesus you are all sons of God, through faith. For as many of you as were baptized into Christ have put on Christ. There is neither Jew nor Greek, there is neither slave nor free, there is no male and female, for you are all one in Christ Jesus. And if you are Christ's, then you are Abraham's offspring, heirs according to promise." Galatians 3: 26-29

A sermon from Galatians 3:15–29.

"And now, little children, abide in him, so that when he appears we may have confidence and not shrink from him in shame at his coming. If you know that he is righteous, you may be sure that everyone who practises righteousness has been born of him." 1 John 2:28-29

A sermon from 1 John 2:18–29.

Many people consider the Word of God as suggestive, rather than authoritative; it merely introduces ideas that carry no particular force, nor demand a particular response. But James, develops the theme of the right response to the word of God. 

"But be doers of the word, and not hearers only, deceiving yourselves. For if anyone is a hearer of the word and not a doer, he is like a man who looks intently at his natural face in a mirror. For he looks at himself and goes away and at once forgets what he was like. But the one who looks into the perfect law, the law of liberty, and perseveres, being no hearer who forgets but a doer who acts, he will be blessed in his doing." James 1:22-25

A sermon from James 1:19–27.

"Christ redeemed us from the curse of the law by becoming a curse for us—for it is written, “Cursed is everyone who is hanged on a tree”—

A sermon from Galatians 3:13.

"For while we were still weak, at the right time Christ died for the ungodly. For one will scarcely die for a righteous person—though perhaps for a good person one would dare even to die— but God shows his love for us in that while we were still sinners, Christ died for us." Romans 5:6-8 

A sermon from Romans 5:1–11. 

A sermon from Galatians 3:1–12. 

A sermon from James 1:17–18.

A sermon from Galatians 3:1-5.

A sermon from James 1:12–18.