Reading through the Bible together
One might wonder, after reading this Psalm, what the first part (praising God, singing a new song to Him, rejoicing in Him with music and dance) has to do with the second part (vengeance, double-edged swords, taking captives and punishment). The two parts don’t seem to fit together in the same Psalm.
And yet, we had a situation like this in Nehemiah’s day (Nehemiah 4: 17-18), when Sanballat and his allies wanted to prevent the rebuilding of the wall of Jerusalem. The men rebuilding the wall did so with work tool in one hand and weapon in the other; praising God for the re-building of the wall and fighting off the enemy at the same time.
There may be times in your life where you praise God on the one hand and on the other hand you are under attack by the enemy. This may seem contradictory, but the more we obey God and win souls for His kingdom, the more we do His will and not our own, the more we reflect His character and praise Him with our lives – the more the enemy of souls wants to attack us. We praise God for the victory that is already won and at the same time put on the whole armor of God (Ephesians 6: 10-17) to fight the enemy.