8 Bible Verses about Courtesy

See that no one repays another with evil for evil, but always seek that which is good for one another and for all people.

Now we who are strong [in our convictions and faith] ought to [patiently] put up with the weaknesses of those who are not strong, and not just please ourselves. Let each one of us [make it a practice to] please his neighbor for his good, to build him up spiritually. For even Christ did not please Himself; but as it is written [in Scripture], “The reproaches of those who reproached You (the Father) fell on Me (the Son).” read more.
For whatever was written in earlier times was written for our instruction, so that through endurance and the encouragement of the Scriptures we might have hope and overflow with confidence in His promises. Now may the God who gives endurance and who supplies encouragement grant that you be of the same mind with one another according to Christ Jesus,

At mealtime Boaz said to her, “Come over here and eat some bread and dip your bread in the vinegar.” So she sat beside the reapers; and he served her roasted grain, and she ate until she was satisfied and she had some left [for Naomi]. When she got up to glean, Boaz ordered his servants, “Let her glean even among the sheaves, and do not insult her. Also you shall purposely pull out for her some stalks [of grain] from the sheaves and leave them so that she may collect them, and do not rebuke her.” read more.
So she gleaned in the field until evening. Then she beat out what she had gleaned, and it was about an ephah of barley. She picked it up and went into the city, and her mother-in-law saw what she had gleaned. Ruth also took out and gave to Naomi what she had saved after she [had eaten and] was satisfied.

But love [that is, unselfishly seek the best or higher good for] your enemies, and do good, and lend, expecting nothing in return; for your reward will be great (rich, abundant), and you will be sons of the Most High; because He Himself is kind and gracious and good to the ungrateful and the wicked.

The next day we landed at Sidon; and Julius, treating Paul with [thoughtful] consideration, allowed him to go to his friends there and be cared for and refreshed.

In the vicinity of that place there were estates belonging to the leading man of the island, named Publius, who welcomed and entertained us hospitably for three days.

Let your speech at all times be gracious and pleasant, seasoned with salt, so that you will know how to answer each one [who questions you].

Finally, all of you be like-minded [united in spirit], sympathetic, brotherly, kindhearted [courteous and compassionate toward each other as members of one household], and humble in spirit;