What does the Bible say about how to handle a sibling rivalry?

This article has been translated into the following languages:

عربى Български 简体中文繁體中文 Español پارسی Français Ελληνικά हिन्दी Hrvatski Indonesia Italiano Kiswahili Magyar Polski Português Română Русский සිංහල Srpski Tagalog ภาษาไทย українська اُردُو Việt