How do we know that speaking evil of others is wrong?

The Scriptures clearly outline that speaking evil of others is not just socially unacceptable but sinful in the eyes of God. This is reinforced in Proverbs 11:13, which indicates that a tale-bearer reveals secrets, but a faithful spirit conceals a matter. Furthermore, James 1:26 states that a person's religion is vain if they do not bridle their tongue, hence underscoring the importance of controlling our speech. God's commands instruct us to love our neighbors genuinely, which naturally excludes any form of slander or negative speech about them. In essence, hasty words spoken in malice or without understanding can lead to grievous harm both to the individuals involved and the greater community.