Singing was so important, and effort in singing according to our ability is vital. ‘They sang together by course’ – or as the Hebrew says, they answered, singing in turn responsively – ‘in praising and giving thanks.
Note the distinction, and we continue these distinctions today, or we should. What is worship – not only spoken words in prayer to God, but words sung in hymns and psalms, and spiritual songs? First of all it is adoration. We focus on him and we try to open every service with a hymn or a psalm which is objective and which talks about God: his mighty acts, his power, his greatness and his glory. And we try in the opening of worship to be as objective as possible. We forget about ourselves for a moment. ‘Oh but I want to thank God for my salvation.’ Of course you do, but not number one, not first. He comes first. We compose our minds and we worship him. Praise is the first thing. Thanksgiving comes afterwards. So we focus on God. Next we thank him for the things that he has done, for salvation in general, for creation, for his works; then we thank him for what he has done for us. We are never first; we are next. So often it is other way round today. Those contemporary worship songs that begin services are often about me, and God's love for me, and how I love him, and how I have been given this and have received that. It's absolutely unscriptural. The teaching on worship throughout the Bible from cover to cover is always the same. He comes first; objective first, heartfelt, drawing ourselves out him, appreciating him, gaining a worthy concept of his might and majesty, and holiness and kindness and love. Only then do we come to ourselves. That is lesson one. Contemporary worship scraps lesson one and abandon it. We remember the categories of prayer and praise, and we try to follow the order: adoration, thanksgiving, repentance, asking, intercession – we don't leave that out – affirmation of great things that he has taught us, and we thank him for them, and we dedicate ourselves to him, and try to honour all these categories consciously. You won't find that in the modern songbooks. They are all over the place. There is no categorisation visible. Biblical worship is lost almost entirely.