“Sing unto the Lord a new song” [Isaiah 42:10]

“Sing unto the Lord a new song”. You can only do this when you have a new heart, for the song of the Lord is known only by the children of the Lord. It is the song of the forgiven sinner.
The song of praise for what the Lord has done is a refrain known only to the redeemed of the Lord. It was that heaven should be filled with choristers who had washed their garments in His blood that Jesus gave His life.
It is when the garment of praise takes the place of the spirit of heaviness that a new song arises from the heart.
The Holy Spirit blends every voice in perfect harmony: it is a peal of praise to the Lord who loves His people.
Repent and believe the gospel: receive His gift of eternal life and sing a new song unto the Lord.