The righteous shall see, to wit, thy remarkable downfall, and consequently shall survive thee in spite of all thy power and malice against them. Fear; both reverence God's just judgment upon thee, and be afraid of provoking God to send like judgment upon them. Shall laugh at him; not taking pleasure in his ruin as such, but only in the glory of God's justice vindicated thereby, Revelation 18:20, and deriding their vain and carnal confidence in their wicked courses.
Related Commentaries of Psalms 52:6
Psalms 52:6
6 The righteous also shall see, and fear, and shall laugh at him: