How do we know God's laughter signifies anger?

In biblical texts, God's laughter is linked closely with His anger towards wickedness and rebellion. It serves not as an expression of joy but rather as a solemn indication of His scorn towards those who oppose His authority. The seriousness of God's laughter is highlighted particularly in context with the judgment that follows. It warns the wicked that their arrogance will not go unpunished. Thus, God's laughter reflects a deeper reality: that while sinners may mock God, they are ultimately under the threat of His righteous wrath.