O come, let us sing unto the LORD: let us make a joyful noise to the rock of our salvation. – Psalm 95:1

When you can say, “I feel like singing all the time,” then sing; and when you say, “I do not feel like singing,” make a point of singing then, just to let the devil know that he is not your master. It is a good thing to praise Christ in the presence of His friends; it is sometimes a better thing to extol Him in the presence of His enemies. It is a great thing to praise Jesus Christ by day; but there is no music sweeter than the nightingale’s, and she praises God by night. It is well to praise the Lord for His mercy when you are in health, but make sure that you do it when you are sick, for then your praise is more likely to be genuine. When you are deep down in sorrow, do not rob God of the gratitude that is due to Him; never stint Him of His revenue of praise whatever else goes short. Praise Him sometimes on the high-sounding cymbals, -crash, crash, -with all your heart and being; but when you cannot do that, just sit, and mean His praise in solemn silence in the deep quiet of your spirit. To be redeemed from a dying world, to be fetched out from a condemned world, to be brought out from slavery, to be made a child of God, is enough to make you emulate the angels, and even to excel them. They cannot rise to so high a pitch of gratitude as you ought to reach even now, and ought to keep up all the days of your life, and then “for ever and ever “in the presence of the King. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/2483.cfm