Praise Him.
Praise Him with the timbrel and dance; Praise Him with stringed instruments and flutes! Psalm 150:4 NKJV
In what manner this tribute must be paid, with all the kinds of musical instruments that were then used in the temple-service. It is well that we are not concerned to enquire what sort of instruments these were; it is enough that they were well known then. Our concern is to know, that hereby is intimated how full the psalmist's heart was of the praises of God and how desirous he was that this good work might go on.
That in serving God we should spare no cost nor pains.
That the best music in God's ears is devout and pious affections, non musica chordula, sed cor-not a melodious string, but a melodious heart. Praise God with a strong faith; praise him with holy love and delight; praise him with an entire confidence in Christ; praise him with a believing triumph over the powers of darkness; praise him with an earnest desire towards him and a full satisfaction in him; praise him by a universal respect to all his commands; praise him by a cheerful submission to all his disposals; praise him by rejoicing in his love and solacing yourselves in his great goodness; praise him by promoting the interests of the kingdom of his grace; praise him by a lively hope and expectation of the kingdom of his glory.
That, various instruments being used in praising God, it should yet be done with an exact and perfect harmony; they must not hinder, but help one another. The New-Testament concert, instead of this, is with one mind and one mouth to glorify God, Rom. 15:6. - Matthew Henry