I guarantee a house in Jannah
The Prophet (sal Allahu alaihi wa sallam) said, “I guarantee a house in Jannah for one who gives up arguing, even if he is in the right; and I guarantee a home in the middle of Jannah for one who abandons lying even for the sake of fun; and I guarantee a house in the highest part of Jannah for one who has good manners.”
[Sunan Abu Dawud]
Withdrawal from one’s right in order to end a dispute is a manly act of great merit.
Likewise, this Hadith tells us that a man should avoid telling a lie even in a light vein. If he gives great importance to the rules of the Shari`ah (Islamic Law) and the Commandments of Allah and His Prophet (sal Allahu alaihi wa sallam), he will definitely refrain from telling a lie even in a chat session or just for the sake of joke. Usually, people don’t mind if one tells a lie in a jocular mood, rather some will perhaps approve it. Yet, Allah disapproves of even the harmless or trivial form of falsehood and commands His slaves to keep away from it.
From all considerations, however, moral excellence carries immense weight. Because no wrong or evil thing can be shun without it. In other words, moral excellence surpasses all forms of goodness.
And Allah knows best!