Jubilant songs songs and expressions of great joy are a part of the believer’s life of praise to the Lord. Sin, death and devil are the enemies that prevent us from experiencing the joy of the Lord; and even after we have experienced the joy and peace in believing they are taking that joy away and replacing it with sorrow and care and anxiety. Spiritual enemies prevent and rob.
When these enemies are defeated and the Lord is taking pleasure in us the joy of the Lord is restored and the high praises of God are on our lips, feet and hands. This renewing of joy and praise happens every day when we repent of sin and believe the Gospel; then the beneficent reign of God comes back into our lives under which we are loved, cared about, provided for, protected and guided.
We can also rejoice today and go nuts with praise because of anticipated future triumph for His people and because of the future judgment and final confinement of our enemies.
Furthermore, we (the believers, the saints, the godly ones, the meek and humble, the people of God) somehow participate in that judgment and get to see the eternal confinement of the enemies that will bother us no more.