That psalm shows how we can qualify to be among the millions who will enjoy praising God forever. He deserves nothing less.
وَهذَا ٱلْمَزْمُورُ يُوضِحُ لَنَا كَيْفَ نَتَأَهَّلُ لِنَكُونَ بَيْنَ مَلَايِينِ ٱلَّذِينَ سَيُسَبِّحُونَ ٱللهَ مَدَى ٱلدَّهْرِ .‏ ‏