8 Bible Verses about Courtesy

See that no one renders evil for evil to anyone. But follow that which is good, both among you, and to all men.

We who are strong in the faith ought to help the weak to carry their burdens. We should not just please ourselves. Let every one of us please his neighbor for his good to build him up. For even Christ did not please himself. However it is written, The reproaches (insults) hurled at you have fallen on me. (Psalm 69:9)read more.
The things written in earlier times were written for our instruction, that we through endurance and the encouragement from the Scriptures might have hope. Now may the God of patience and consolation grant you to be likeminded one toward another according to Christ Jesus.

At mealtime Boaz said to her: Come here, that you may eat of the bread and dip your piece of bread in the vinegar. So she sat beside the reapers. He served her roasted grain. She ate and was satisfied and had some left over. She rose to glean. Boaz commanded his servants, saying: Let her glean among the sheaves, and do not bother her. Pull some heads of grain out of what has been corded up and drop them for her to take. Say no sharp word to her.read more.
She gathered the heads of grain till evening. After crushing out the seed, it came to about an ephah of grain. She carried it back to town to show her mother-in-law what she gathered. She kept enough for herself and gave Naomi the rest.

Love your enemies and do good to them. Lend expecting nothing in return and your reward will be great. You will be sons of the Most High for he is kind toward the unthankful and evil.

The next day we landed at Sidon. Julius treated Paul in a kind way and gave him liberty to go to his friends to refresh himself.

A man named Publius, who was the governor of the island, had property around the area. He welcomed us and treated us kindly. We were his guests for three days.

Let your speech be always with grace, seasoned with salt, that you may know how you ought to answer each one.

Finally, all of you be like-minded, compassionate, brotherly, tenderhearted, and humble.